Work on magnetic systems, including low-dimensional and frustrated magnets and topological materials.

2022

W. J. A. Blackmore, S. P. M. Curley, R. C. Williams, S. Vaidya, J. Singleton, S. Birnbaum, A. Ozarowski, J. A. Schlueter, Y.-S. Chen, B. Gillon, A. Goukassov, I. Kibalin, D. Y. Villa, J. A. Villa, J. L. Manson, and P. A. Goddard, Magneto-structural Correlations in Ni²⁺–Halide···Halide–Ni²⁺ Chains, Inorganic Chemistry 61, 141-153 (2022).

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M. T. Birch, D. Cortés-Ortuño, K. Litzius, S. Wintz, F. Schulz, M. Weigand, A. Štefančič, D. A. Mayoh, G. Balakrishnan, P. D. Hatton, and G. Schütz, Toggle-like current-induced Bloch point dynamics of 3D skyrmion strings in a room temperature nanowire, Nature Communications 13, 3630 (2022).

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G. R. M. Clarke, M. R. Lees, C. Ritter, I. da Silva, and M. S. Senn, Synthesis and Characterization of Magnetoelectric Ba₇Mn₄O₁₅, Inorganic Chemistry 61, 10015-10022 (2022).

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K. Götze, M. J. Pearce, M. J. Coak, P. A. Goddard, A. D. Grockowiak, W. A. Coniglio, S. W. Tozer, D. E. Graf, M. B. Maple, P. C. Ho, M. C. Brown, and J. Singleton, Pressure-induced shift of effective Ce valence, Fermi energy and phase boundaries in CeOs₄Sb₁₂, New Journal of Physics 24, 043044 (2022).

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A. E. Hall, J. C. Loudon, P. A. Midgley, A. C. Twitchett-Harrison, S. J. R. Holt, D. A. Mayoh, J. P. Tidey, Y. Han, M. R. Lees, and G. Balakrishnan, Comparative study of the structural and magnetic properties of Mn_1/3NbS₂ and Cr_1/3NbS₂, Physical Review Materials 6, 024407 (2022).

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T. J. Hicken, Z. Hawkhead, M. N. Wilson, B. M. Huddart, A. E. Hall, G. Balakrishnan, C. Wang, F. L. Pratt, S. J. Clark, and T. Lancaster, Energy-gap driven low-temperature magnetic and transport properties in Cr_1/3MS₂ (M = Nb, Ta), Physical Review B 105, L060407 (2022).

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T. J. Hicken, M. N. Wilson, S. J. R. Holt, R. Khassanov, M. R. Lees, R. Gupta, D. Das, G. Balakrishnan, and T. Lancaster, Magnetism in the Neel-skyrmion host GaV₄S₈ under pressure, Physical Review B 105, 134414 (2022).

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M. T. Littlehales, L. A. Turnbull, M. N. Wilson, M. T. Birch, H. Popescu, N. Jaouen, J. A. T. Verezhak, G. Balakrishnan, and P. D. Hatton, Enhanced skyrmion metastability under applied strain in FeGe, Physical Review B 106, 214434 (2022).

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H. Liu, A. J. Hickey, M. Hartstein, A. J. Davies, A. G. Eaton, T. Elvin, E. Polyakov, T. H. Vu, V. Wichitwechkarn, T. Forster, J. Wosnitza, T. P. Murphy, N. Shitsevalova, M. D. Johannes, M. C. Hatnean, G. Balakrishnan, G. G. Lonzarich, and S. E. Sebastian, f-electron hybridised Fermi surface in magnetic field-induced metallic YbB₁₂, npj Quantum Materials 7, 12 (2022).

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A. Longcake, M. R. Lees, M. S. Senn, and A. B. Chaplin, Oxidative Addition of C–Cl Bonds to a Rh(PONOP) Pincer Complex, Organometallics 41, 3557-3567 (2022).

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D. A. Mayoh, J. Bouaziz, A. E. Hall, J. B. Staunton, M. R. Lees, and G. Balakrishnan, Giant topological and planar Hall effect in Cr_1/3NbS₂, Physical Review Research 4, 013134 (2022).

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M. J. Pearce, K. Götze, A. Szabó, T. S. Sikkenk, M. R. Lees, A. T. Boothroyd, D. Prabhakaran, C. Castelnovo, and P. A. Goddard, Magnetic monopole density and antiferromagnetic domain control in spin-ice iridates, Nature Communications 13, 444 (2022).

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R. E. Powell, M. R. Lees, G. J. Tizzard, and P. J. v. Koningsbruggen, Fe^III in a high-spin state in bis(5-bromosalicylaldehyde 4-ethylthiosemicarbazonato-[kappa]³O,N¹,S)ferrate(III) nitrate monohydrate, the first example of such a cationic Fe^III complex unit, Acta Crystallographica Section C 78, 63-69 (2022).

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N. Qureshi, B. Z. Malkin, S. X. M. Riberolles, C. Ritter, B. Ouladdiaf, G. Balakrishnan, M. Ciomaga Hatnean, and O. A. Petrenko, Magnetic structures of geometrically frustrated SrGd₂O₄ derived from powder and single-crystal neutron diffraction, Physical Review B 105, 014425 (2022).

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Yu. A. Sakhratov, O. Prokhnenko, A. Y. Shapiro, H. D. Zhou, L. E. Svistov, A. P. Reyes, and O. A. Petrenko, High-field magnetic structure of the triangular antiferromagnet RbFe(MoO₄)₂, Physical Review B 105, 014431 (2022).

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A. C. Twitchett-Harrison, J. C. Loudon, R. A. Pepper, M. T. Birch, H. Fangohr, P. A. Midgley, G. Balakrishnan, and P. D. Hatton, Confinement of Skyrmions in Nanoscale FeGe Device-like Structures, ACS Applied Electronic Materials 4, 4427-4437 (2022).

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L. A. Turnbull, M. T. Littlehales, M. N. Wilson, M. T. Birch, H. Popescu, N. Jaouen, J. A. T. Verezhak, G. Balakrishnan, and P. D. Hatton, X-ray holographic imaging of magnetic surface spirals in FeGe lamellae, Physical Review B 106, 064422 (2022).

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2021

M. T. Birch, D. Cortés-Ortuño, N. D. Khanh, S. Seki, A. Štefančič, G. Balakrishnan, Y. Tokura, and P. D. Hatton, Topological defect-mediated skyrmion annihilation in three dimensions, Communications Physics 4, 175 (2021).

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S. R. Brearton, L. A. Turnbull, J. A. T. Verezhak, G. Balakrishnan, P. D. Hatton, G. van der Laan, and T. Hesjedal, Deriving the skyrmion Hall angle from skyrmion lattice dynamics, Nature Communications 12, 2723 (2021).

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M. A. Carpenter, D. Pesquera, D. O'Flynn, G. Balakrishnan, N. Mufti, A. A. Nugroho, T. Palstra, M. Mihalik, M. Mihalik, M. Zentkova, A. Almeida, J. A. Agostinho Moreira, R. Vilarinho, and D. Meier, Strain relaxation dynamics of multiferroic orthorhombic manganites, Journal of Physics: Condensed Matter 33, 125402 (2021).

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M. J. Coak, D. M. Jarvis, H. Hamidov, A. R. Wildes, J. A. M. Paddison, C. Liu, C. R. S. Haines, N. T. Dang, S. E. Kichanov, B. N. Savenko, S. Lee, M. Kratochvílová, S. Klotz, T. C. Hansen, D. P. Kozlenko, J.-G. Park, and S. S. Saxena, Emergent magnetic phases in pressure-tuned van der Waals antiferromagnet FePS₃, Physical Review X 11, 011024 (2021).

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S. P. M. Curley, R. Scatena, R. C. Williams, P. A. Goddard, P. Macchi, T. J. Hicken, T. Lancaster, F. Xiao, S. J. Blundell, V. Zapf, J. C. Eckert, E. H. Krenkel, J. A. Villa, M. L. Rhodehouse, and J. L. Manson, Magnetic ground state of the one-dimensional ferromagnetic chain compounds M(NCS)₂(thiourea)₂ (M = Ni,Co), Physical Review Materials 5, 034401 (2021).

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Y. S. Eo, A. Rakoski, S. Sinha, D. Mihaliov, W. T. Fuhrman, S. R. Saha, P. F. S. Rosa, Z. Fisk, M. C. Hatnean, G. Balakrishnan, J. R. Chamorro, W. A. Phelan, S. M. Koohpayeh, T. M. McQueen, B. Kang, M.-S. Song, B. Cho, M. S. Fuhrer, J. Paglione, and Ç. Kurdak, Bulk transport paths through defects in floating zone and Al flux grown SmB₆, Physical Review Materials 5, 055001 (2021).

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G. Grissonnanche, Y. Fang, A. Legros, S. Verret, F. Laliberté, C. Collignon, J. Zhou, D. Graf, P. A. Goddard, L. Taillefer, and B. J. Ramshaw, Linear-in temperature resistivity from an isotropic Planckian scattering rate, Nature 595, 667 (2021).

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A. E. Hall, D. D. Khalyavin, P. Manuel, D. A. Mayoh, F. Orlandi, O. A. Petrenko, M. R. Lees, and G. Balakrishnan, Magnetic structure investigation of the intercalated transition metal dichalcogenide V_1/3NbS₂, Physical Review B 103, 174431 (2021).

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T. J. Hicken, M. N. Wilson, K. J. A. Franke, B. M. Huddart, Z. Hawkhead, M. Gomilšek, S. J. Clark, F. L. Pratt, A. Štefančič, A. E. Hall, M. Ciomaga Hatnean, G. Balakrishnan, and T. Lancaster, Megahertz dynamics in skyrmion systems probed with muon-spin relaxation, Physical Review B 103, 024428 (2021).

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S. J. R. Holt, C. Ritter, M. R. Lees, and G. Balakrishnan, Investigation of the magnetic ground state of GaV₄S₈ using powder neutron diffraction, Journal of Physics: Condensed Matter 33, 255802 (2021).

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S. J. R. Holt, A. Stefancic, J. C. Loudon, M. R. Lees, and G. Balakrishnan, Investigations of the size distribution and magnetic properties of nanoparticles of Cu2OSeO3, Materials Research Express 8, 116101 (2021).

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B. M. Huddart, M. Gomilšek, T. J. Hicken, F. L. Pratt, S. J. Blundell, P. A. Goddard, S. J. Kaech, J. L. Manson, and T. Lancaster, Magnetic order and ballistic spin transport in a sine-Gordon spin chain, Physical Review B 103, L060405 (2021).

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H. Jacobsen, O. Florea, E. Lhotel, K. Lefmann, O. A. Petrenko, C. S. Knee, T. Seydel, P. F. Henry, R. Bewley, D. Voneshen, A. Wildes, G. Nilsen, and P. P. Deen, Spin dynamics of the director state in frustrated hyperkagome systems, Physical Review B 104, 054440 (2021).

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D. D. Khalyavin, P. Manuel, M. C. Hatnean, and O. A. Petrenko, Fragile ground state and rigid field-induced structures in the zigzag ladder compound BaDy₂O₄, Physical Review B 103, 134434 (2021).

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M. Léger, E. Lhotel, M. Ciomaga Hatnean, J. Ollivier, A. R. Wildes, S. Raymond, E. Ressouche, G. Balakrishnan, and S. Petit, Spin dynamics and unconventional Coulomb phase in Nd₂Zr₂O₇, Physical Review Letters 126, 247201 (2021).

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M. Léger, E. Lhotel, E. Ressouche, K. Beauvois, F. Damay, C. Paulsen, A. Al-Mawla, E. Suard, M. Ciomaga Hatnean, G. Balakrishnan, and S. Petit, Field-temperature phase diagram of the enigmatic Nd₂(Zr_1-xTi_x)₂O₇ pyrochlore magnets, Physical Review B 103, 214449 (2021).

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C. Macchiutti, J. R. Jesus, F. B. Carneiro, L. Bufaiçal, M. Ciomaga Hatnean, G. Balakrishnan, and E. M. Bittar, Absence of zero-field-cooled exchange bias effect in single crystalline La_2-xA_xCoMnO₆ (A = Ca, Sr) compounds, Physical Review Materials 5, 094402 (2021).

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J. L. Manson, S. P. M. Curley, R. C. Williams, D. Walker, P. A. Goddard, A. Ozarowski, R. D. Johnson, A. M. Vibhakar, D. Y. Villa, M. L. Rhodehouse, S. M. Birnbaum, and J. Singleton, Controlling magnetic anisotropy in a zero-dimensional S = 1 magnet using isotropic cation substitution, Journal of the American Chemical Society 143, 4633 (2021).

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D. A. Mayoh, G. D. A. Wood, S. J. R. Holt, G. Beckett, E. J. L. Dekker, M. R. Lees, and G. Balakrishnan, Effects of Fe Deficiency and Co Substitution in Polycrystalline and Single Crystals of Fe₃GeTe₂, Crystal Growth & Design 21, 6786-6792 (2021).

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S. H. Moody, P. Nielsen, M. N. Wilson, D. A. Venero, A. Stefancic, G. Balakrishnan, and P. D. Hatton, Experimental evidence of a change of exchange anisotropy sign with temperature in Zn-substituted Cu₂OSeO₃, Physical Review Research 3, 043149 (2021).

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A. Mostaed, B. Walkley, M. C. Hatnean, G. Balakrishnan, M. R. Lees, R. Beanland, D. C. Sinclair, and I. M. Reaney, Characterizing oxygen atoms in perovskite and pyrochlore oxides using ADF-STEM at a resolution of a few tens of picometers, Acta Materialia 208, 116717 (2021).

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R. Ohlendorf, S. Spachmann, L. Fischer, K. Dey, D. Brunt, G. Balakrishnan, O. A. Petrenko, and R. Klingeler, Magnetoelastic coupling and Gruneisen scaling in NdB₄, Physical Review B 103, 104424 (2021).

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J. A. M. Paddison, G. Ehlers, A. B. Cairns, J. S. Gardner, O. A. Petrenko, N. P. Butch, D. D. Khalyavin, P. Manuel, H. E. Fischer, H. D. Zhou, A. L. Goodwin, and J. R. Stewart, Suppressed-moment 2-k order in the canonical frustrated antiferromagnet Gd₂Ti₂O₇, Npj Quantum Materials 6, 99 (2021).

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N. Qureshi, A. R. Wildes, C. Ritter, B. Fåk, S. X. M. Riberolles, M. Ciomaga Hatnean, and O. A. Petrenko, Magnetic structure and low-temperature properties of geometrically frustrated SrNd₂O₄, Physical Review B 103, 134433 (2021).

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N. Qureshi, P. Manuel, D. D. Khalyavin, E. Lhotel, S.X.M. Riberolles, G. Balakrishnan, and O. A. Petrenko, Field-induced magnetic states in geometrically frustrated SrEr₂O₄, SciPost Phys. 11, 007 (2021).

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L. Ø. Sandberg, R. Edberg, I.-M. B. Bakke, K. S. Pedersen, M. C. Hatnean, G. Balakrishnan, L. Mangin-Thro, A. Wildes, B. Fåk, G. Ehlers, G. Sala, P. Henelius, K. Lefmann, and P. P. Deen, Emergent magnetic behavior in the frustrated Yb₃Ga₅O₁₂ garnet, Physical Review B 104, 064425 (2021).

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J. Sannigrahi, A. Paul, A. Banerjee, D. Khalyavin, A. D. Hillier, K. Yokoyama, A. K. Bera, M. R. Lees, I. Dasgupta, S. Majumdar, and D. T. Adroja, Orbital effects and Affleck-Haldane-type spin dimerization in Ba₄Ru₃O₁₀, Physical Review B 103, 144431 (2021).

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S. D. Seddon, D. E. Dogaru, S. J. R. Holt, D. Rusu, J. J. P. Peters, A. M. Sanchez, and M. Alexe, Real-space observation of ferroelectrically induced magnetic spin crystal in SrRuO₃, Nature Communications 12, 2007 (2021).

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L. Storozhuk, M. O. Besenhard, S. Mourdikoudis, A. P. LaGrow, M. R. Lees, L. D. Tung, A. Gavriilidis, and N. T. K. Thanh, Stable iron oxide nanoflowers with exceptional magnetic heating efficiency: simple and fast polyol synthesis, ACS Applied Materials & Interfaces 13, 45870 (2021).

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R. Tripathi, D. T. Adroja, M. R. Lees, A. Sundaresan, S. Langridge, A. Bhattacharyya, V. K. Anand, D. D. Khalyavin, J. Sannigrahi, G. Cibin, A. D. Hillier, R. I. Smith, H. C. Walker, Y. Muro, and T. Takabatake, Crossover from Kondo semiconductor to metallic antiferromagnet with 5d-electron doping in CeFe₂Al₁₀, Physical Review B 104, 144405 (2021).

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L. A. Turnbull, M. T. Birch, A. Laurenson, N. Bukin, E. O. Burgos-Parra, H. Popescu, M. N. Wilson, A. Stefancic, G. Balakrishnan, F. Y. Ogrin, and P. D. Hatton, Tilted X-ray holography of magnetic bubbles in MnNiGa lamellae, ACS Nano 15, 387 (2021).

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J. Valenta, M. Kratochvílová, M. Míšek, K. Carva, J. Kaštil, P. Doležal, P. Opletal, P. Čermák, P. Proschek, K. Uhlířová, J. Prchal, M. J. Coak, S. Son, J. G. Park, and V. Sechovský, Pressure-induced large increase of Curie temperature of the van der Waals ferromagnet VI₃, Physical Review B 103, 054424 (2021).

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M. N. Wilson, T. J. Hicken, M. Gomilšek, A. Štefančič, G. Balakrishnan, J. C. Loudon, A. C. Twitchett-Harrison, F. L. Pratt, M. Telling, and T. Lancaster, Spin dynamics in bulk MnNiGa and Mn_1.4Pt_0.9Pd_0.1Sn investigated by muon spin relaxation, Physical Review B 104, 134414 (2021).

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2020

Selective uptake of Ag(I) from aqueous solutions using ionic liquid-modified iron oxide nanoparticles, A.D. Aderibigbe, R.A. Crane, M.R. Lees, and A.J. Clark, Journal of Nanoparticle Research 22, 216 (2020).

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Real-space imaging of confined magnetic skyrmion tubes, M. T. Birch, D. Cortés-Ortuño, L. A. Turnbull, M. N. Wilson, F. Groß, N. Träger, A. Laurenson, N. Bukin, S. H. Moody, M. Weigand, G. Schütz, H. Popescu, R. Fan, P. Steadman, J. A. T. Verezhak, G. Balakrishnan, J. C. Loudon, A. C. Twitchett-Harrison, O. Hovorka, H. Fangohr, F. Y. Ogrin, J. Gräfe, and P. D. Hatton, Nature Communications 11, 1726 (2020).

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Anisotropy-induced depinning in the Zn-substituted skyrmion host Cu₂OSeO₃, M. T. Birch, S. H. Moody, M. N. Wilson, M. Crisanti, O. Bewley, A. Štefančič, G. Balakrishnan, R. Fan, P. Steadman, D. Alba Venero, R. Cubitt, and P. D. Hatton, Physical Review B 102, 104424 (2020).

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Surface analysis of the PrB₆ (001) cleavage plane by scanning tunneling microscopy and spectroscopy, P. Buchsteiner, L. Harmsen, M. Ciomaga Hatnean, G. Balakrishnan, and M. Wenderoth, Physical Review B 102, 205403 (2020).

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(M,Ru)O₂ (M = Mg, Zn, Cu, Ni, Co) rutiles and their use as oxygen evolution electrocatalysts in membrane electrode assemblies under acidic conditions, D. L. Burnett, E. Petrucco, K. M. Rigg, C. M. Zalitis, J. G. Lok, R. J. Kashtiban, M. R. Lees, J. D. B. Sharman, and R. I. Walton, Chemistry of Materials 32, 6150 (2020).

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Crystal Growth by the Floating Zone Method of Ce-Substituted Crystals of the Topological Kondo Insulator SmB₆, M. Ciomaga Hatnean, T. Ahmad, M. Walker, M.R. Lees, and G. Balakrishnan, Crystals 10, 827 (2020).

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Optical Floating Zone Crystal Growth of Rare-Earth Disilicates, R₂Si₂O₇ (R = Er, Ho, and Tm), M. Ciomaga Hatnean, O.A. Petrenko, M.R. Lees, T.E. Orton, and G. Balakrishnan, Crystal Growth and Design 20, 6636 (2020).

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SquidLab-A user-friendly program for background subtraction and fitting of magnetization data, M. J. Coak, C. Liu, D. M. Jarvis, S. Park, M. J. Cliffe, and P. A. Goddard, Review of Scientific Instruments 91, 023901 (2020).

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Tuning dimensionality in van-der-Waals antiferromagnetic Mott insulators TMPS₃, M. J. Coak, D. M. Jarvis, H. Hamidov, C. R. S. Haines, P. L. Alireza, C. Liu, S. Son, I. Hwang, G. I. Lampronti, D. Daisenberger, P. Nahai-Williamson, A. R. Wildes, S. S. Saxena, and J. G. Park, Journal of Physics: Condensed Matter 32, 124003 (2020).

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Ga_2.52V_2.48O_7.33(OH)_0.67, a synthetic member of the nolanite/akdalaite-type family of oxyhydroxides containing trivalent vanadium, D. S. Cook, M. R. Lees, J. M. Fisher, D. Thompsett, and R. I. Walton, Journal of Solid State Chemistry 288, 121396 (2020).

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In situ control of the helical and skyrmion phases in Cu₂OSeO₃ using high-pressure helium gas up to 5 kbar, M. Crisanti, N. Reynolds, I. Zivkovic, A. Magrez, H. M. Ronnow, R. Cubitt, and J. S. White, Physical Review B 101, 214435 (2020).

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Position-dependent stability and lifetime of the skyrmion state in nickel-substituted Cu₂OSeO₃, M. Crisanti, M.T. Birch, M.N. Wilson, S.H. Moody, A. Štefančič, B.M. Huddart, S. Cabeza, G. Balakrishnan, P.D. Hatton, and R. Cubitt, Physical Review B 102, 224407 (2020).

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Comprehensive surface magnetotransport study of SmB₆, Y. S. Eo, S. Wolgast, A. Rakoski, D. Mihaliov, B. Y. Kang, M. S. Song, B. K. Cho, M. C. Hatnean, G. Balakrishnan, Z. Fisk, S. R. Saha, X. Wang, J. Paglione, and Ç. Kurdak, Physical Review B 101, 155109 (2020).

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Unusual phase boundary of the magnetic-field-tuned valence transition in CeOs₄Sb₁₂, K. Gotze, M. J. Pearce, P. A. Goddard, M. Jaime, M. B. Maple, K. Sasmal, T. Yanagisawa, A. McCollam, T. Khouri, P. C. Ho, and J. Singleton, Physical Review B 101, 075102 (2020).

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Local nuclear and magnetic order in the two-dimensional spin glass Mn_0.5Fe_0.5PS₃, J. N. Graham, M. J. Coak, S. Son, E. Suard, J. G. Park, L. Clark, and A. R. Wildes, Physical Review Materials 4, 084401 (2020).

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Intrinsic Bulk Quantum Oscillations in a Bulk Unconventional Insulator SmB₆, M. Hartstein, H. Liu, Y. T. Hsu, B. S. Tan, M. C. Hatnean, G. Balakrishnan, S. E. Sebastian, Iscience 23, 101632 (2020).

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Structural, Magnetic, Magnetocaloric, and Magnetostrictive Properties of Pb_1-xSr_xMnBO₄ (x = 0, 0.5, and 1.0), J. Head, P. Manuel, F. Orlandi, M. Jeong, M.R. Lees, R. Li, and C. Greaves, Chemistry of Materials 32, 10184 (2020)

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Magnetism and Neel skyrmion dynamics in GaV₄S_8-ySe_y, T. J. Hicken, S. J. R. Holt, K. J. A. Franke, Z. Hawkhead, A. Štefančič, M. N. Wilson, M. Gomilšek, B. M. Huddart, S. J. Clark, M. R. Lees, F. L. Pratt, S. J. Blundell, G. Balakrishnan, and T. Lancaster, Physical Review Research 2, 032001 (2020).

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Structure and magnetism of the skyrmion hosting family GaV4S_8-ySe_y with low levels of substitutions between 0 ≤ y ≤ 0.5 and 7.5 ≤ y ≤ 8, S.J.R. Holt, A. Štefančič, C. Ritter, A.E. Hall, M.R. Lees, and G. Balakrishnan, Physical Review Materials 4, 114413 (2020) .

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Observation of plateau-like magnetoresistance in twisted Fe₃GeTe₂/Fe₃GeTe₂ junction, J. Kim, S. Son, M.J. Coak, I. Hwang, Y. Lee, K. Zhang, and J.G. Park, Journal of Applied Physics 128, 093901 (2020).

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Torque magnetometry study of the spin reorientation transition and temperature-dependent magnetocrystalline anisotropy in NdCo₅, S. Kumar, C. E. Patrick, R. S. Edwards, G. Balakrishnan, M. R. Lees, and J. B. Staunton, Journal of Physics: Condensed Matter 32, 255802 (2020).

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Tunability of the spin reorientation transitions with pressure in NdCo₅, S. Kumar, C. E. Patrick, R. S. Edwards, G. Balakrishnan, M. R. Lees, and J. B. Staunton, Applied Physics Letters 116, 102408 (2020).

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Evolution of field-induced metastable phases in the Shastry-Sutherland lattice magnet TmB₄, D. Lancon, V. Scagnoli, U. Staub, O.A. Petrenko, M.C. Hatnean, E. Canevet, R. Sibille, S. Francoual, J.R.L. Mardegan, K. Beauvois, G. Balakrishnan, L.J. Heyderman, C. Ruegg, and T. Fennell, Physical Review B 102, 060407 (2020).

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Metallic iron in cornflakes, F. Lermyte, W.Y. Zhang, J. Brooks, S. Huband, J.F. Collingwood, M.R. Lees, M.P. Rayman, P.J. Sadler, Food and Function 11, 2938 (2020).

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Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets, J. L. Manson, Z. E. Manson, A. Sargent, D. Y. Villa, N. L. Etten, W. J. A. Blackmore, S. P. M. Curley, R. C. Williams, J. Brambleby, P. A. Goddard, A. Ozarowski, M. N. Wilson, B. M. Huddart, T. Lancaster, R. D. Johnson, S. J. Blundell, J. Bendix, K. A. Wheeler, S. H. Lapidus, F. Xiao, S. Birnbaum, and J. Singleton, Polyhedron 180, 114379 (2020).

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Raman response of topologically protected surface states in sub-micrometric Pb_0.77Sn_0.23Se flakes, S. Mehdipour, D. López-Diaz, M.M. Velázquez, P. Hidalgo, B. Méndez, M. Luna, V. Bellani, M. Amado, G. Balakrishnan, and E. Diez, Journal of Raman Spectroscopy 51, 2489 (2020).

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Disorder-induced critical exponents near a ferromagnetic quantum critical point in Mn_1-xCr_xSi, A. K. Mishra, S. S. Samatham, M. R. Lees, and V. Ganesan, Physical Review B 101, 144436 (2020).

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Extremely well isolated two-dimensional spin-1/2 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF, D. Opherden, N. Nizar, K. Richardson, J.C. Monroe, M.M. Turnbull, M. Polson, S. Vela, W.J.A. Blackmore, P.A. Goddard, J. Singleton, E.S. Choi, F. Xiao, R.C. Williams, T. Lancaster, F.L. Pratt, S.J. Blundell, Y. Skourski, M. Uhlarz, A.N. Ponomaryov, S.A. Zvyagin, J. Wosnitza, M. Baenitz, I. Heinmaa, R. Stern, H. Kühne, and C.P. Landee, Physical Review B 102, 064431 (2020).

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Strongly adhesive dry transfer technique for van der Waals heterostructure, S. Son, Y.J. Shin, K.X. Zhang, J. Shin, S. Lee, H. Idzuchi, M.J. Coak, H. Kim, J. Kim, J.H. Kim, M. Kim, D. Kim, P. Kim, and J.G. Park, 2d Materials 7, 041005 (2020).

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Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials: GaV₄S_8−ySey, A. Štefančič, S. J. R. Holt, M. R. Lees, C. Ritter, M. J. Gutmann, T. Lancaster, and G. Balakrishnan, Scientific Reports 10, 9813 (2020).

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Extremely slow nonequilibrium monopole dynamics in classical spin ice, T. Stöter, M. Doerr, S. Granovsky, M. Rotter, S. T. B. Goennenwein, S. Zherlitsyn, O. A. Petrenko, G. Balakrishnan, H. D. Zhou, J. Wosnitza, Physical Review B 101, 224416 (2020).

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LiHoF₄: Cuboidal demagnetizing factor in an Ising ferromagnet, M. Twengström, L. Bovo, O.A. Petrenko, S.T. Bramwell, and P. Henelius, Physical Review B 102, 144426 (2020).

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Proximity-induced ferromagnetism and chemical reactivity in few-layer VSe₂ heterostructures, G. Vinai, C. Bigi, A. Rajan, M. D. Watson, T. L. Lee, F. Mazzola, S. Modesti, S. Barua, M. Ciomaga Hatnean, G. Balakrishnan, P. D. C. King, P. Torelli, G. Rossi, and G. Panaccione, Physical Review B 101, 035404 (2020).

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Direct observation of the energy gain underpinning ferromagnetic superexchange in the electronic structure of CrGeTe₃, M. D. Watson, I. Marković, F. Mazzola, A. Rajan, E. A. Morales, D. M. Burn, T. Hesjedal, G. van der Laan, S. Mukherjee, T. K. Kim, C. Bigi, I. Vobornik, M. Ciomaga Hatnean, G. Balakrishnan, and P. D. C. King, Physical Review B 101, 205125 (2020).

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Near-ideal molecule-based Haldane spin chain, R. C. Williams, W. J. A. Blackmore, S. P. M. Curley, M. R. Lees, S. M. Birnbaum, J. Singleton, B. M. Huddart, T. J. Hicken, T. Lancaster, S. J. Blundell, F. Xiao, A. Ozarowski, F. L. Pratt, D. J. Voneshen, Z. Guguchia, C. Baines, J. A. Schlueter, D. Y. Villa, J. L. Manson, and P. A. Goddard, Physical Review Research 2, 013082 (2020).

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Stability and metastability of skyrmions in thin lamellae of Cu₂OSeO₃, M. N. Wilson, M. T. Birch, A. Štefančič, A. C. Twitchett-Harrison, G. Balakrishnan, T. J. Hicken, R. Fan, P. Steadman, and P. D. Hatton, Physical Review Research 2, 013096 (2020).

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Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange, F. Xiao, W.J.A. Blackmore, B.M. Huddart, M. Gomilsek, T.J. Hicken, C. Baines, P.J. Baker, F.L. Pratt, S.J. Blundell, H. Lu, J. Singleton, D. Gawryluk, M.M. Turnbull, K.W. Kramer, P.A. Goddard, and T. Lancaster, Physical Review B 102, 174429 (2020).

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2019

Increased lifetime of metastable skyrmions by controlled doping, M. T. Birch, R. Takagi, S. Seki, M. N. Wilson, F. Kagawa, A. Štefančič, G. Balakrishnan, R. Fan, P. Steadman, C. J. Ottley, M. Crisanti, R. Cubitt, T. Lancaster, Y. Tokura, and P. D. Hatton, Physical Review B 100, 014425 (2019).

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Unconventional Determining the anisotropy and exchange parameters of polycrystalline spin-1 magnets, W. J. A. Blackmore, J. Brambleby, T. Lancaster, S. J. Clark, R. D. Johnson, J. Singleton, A. Ozarowski, J. A. Schlueter, Y. S. Chen, A. M. Arif, S. Lapidus, F. Xiao, R. C. Williams, S. J. Blundell, M. J. Pearce, M. R. Lees, P. Manuel, D. Y. Villa, J. A. Villa, J. L. Manson, and P. A. Goddard, New Journal of Physics 21, 093025 (2019).

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Single-Crystal Growth of Metallic Rare-Earth Tetraborides by the Floating-Zone Technique, D. Brunt, M. Ciomaga Hatnean, A. O. Petrenko, R. M. Lees, and G. Balakrishnan, Crystals 9, 211, (2019).

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Surface resonance of the (2 x 1) reconstructed lanthanum hexaboride (001)-cleavage plane: A combined STM and DFT study, P. Buchsteiner, F. Sohn, J. G. Horstmann, J. Voigt, M. C. Hatnean, G. Balakrishnan, C. Ropers, P. E. Bloechl, and M. Wenderoth, Physical Review B 100, 205407 (2019).

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Isostructural Mott transition in 2D honeycomb antiferromagnet V_0.9PS₃, M. J. Coak, S. Son, D. Daisenberger, H. Hamidov, C. R. S. Haines, P. L. Alireza, A. R. Wildes, C. Liu, S. S. Saxena, and J. G. Park,npj Quantum Materials, 4, 38 (2019).

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Electronic and vibrational properties of the two-dimensional Mott insulator V_0.9PS₃ under pressure, M. J. Coak, Y. H. Kim, Y. S. Yi, S. Son, S. K. Lee, and J. G. Park, Physical Review B, 100, 0351209 (2019).

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Pressure dependence of ferroelectric quantum critical fluctuations, M. J. Coak, C. R. S. Haines, C. Liu, G. G. Guzman-Verri, and S. S. Saxena, Physical Review B, 100, 214111 (2019).

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Iron Carbide@Carbon Nanocomposites: A Tool Box of Functional Materials, Chiara Defilippi, Mariam Omar Ali Mukadam, Sabina Alexandra Nicolae, Martin Richard Lees, and Cristina Giordano, Materials 12, 232 (2019).

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Effect of different atmospheres on the synthesis of Ba₂CuGe₂O₇ single crystals, V. Granata, L. Rocco, A. Ubaldini, M. R. Lees, R. Fittipaldi, M. Ciomaga Hatnean, S. Pace, G. Balakrishnan, and A. Vecchione, The European Physical Journal Special Topics 228, 703 (2019).

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Using Negative Muons as a Probe for Depth Profiling Silver Roman Coinage, B. V. Hampshire, K. Butcher, K. Ishida, G. Green, D. M. Paul, and A. D. Hillier, Heritage 2, 400 (2019).

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Hard ferromagnetic van-der-Waals metal (Fe,Co)₃GeTe₂: a new platform for the study of low-dimensional magnetic quantum criticality, I. Hwang, M. J. Coak, N. Lee, D. S. Ko, Y. Oh, I. Jeon, S. Son, K. Zhang, J. Kim, and J. G. Park, Journal of Physics: Condensed Mattter 31, 50LT01 (2019).

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Magnetic order and enhanced exchange in the quasi-one-dimensional molecule-based antiferromagnet Cu(NO₃)₂(pyz)₃, B. M. Huddart, J. Brambleby, T. Lancaster, P. A. Goddard, F. Xiao, S. J. Blundell, F. L. Pratt, J. Singleton, P. Macchi, R. Scatena, A. M. Barton, and J. L. Manson, Physical Chemistry Chemical Physics 21, 1014 (2019).

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Symmetries of modes in Ni₃V₂O₈: Polarized Raman spectroscopy and ab initio phonon calculations, Swayam Kesari Rekha Rao, Mayanak K. Gupta, R. Mittal, and Geetha Balakrishnan, Journal of Raman Spectroscopy 50, 587 (2019).

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Magnetic and structural changes in Cu_1−xAl_x alloy matrix – Embedded Fe nanoparticle systems, M. S. Kurt, S. H. Baker, M. Roy, and M. R. Lees, Journal of Magnetism and Magnetic Materials 471, 549 (2019).

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Magnetism and structure in nanocomposite Fe nanoparticle/Al matrix films, M. S. Kurt, S. H. Baker, M. Roy, and M. R. Lees, Journal of Alloys and Compounds 807, 151653 (2019).

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Unconventional Field-Induced Spin Gap in an S = 1/2 Chiral Staggered Chain, J. Liu, S. Kittaka, R. D. Johnson, T. Lancaster, J. Singleton, T. Sakakibara, Y. Kohama, J. van Tol, A. Ardavan, B. H. Williams, S. J. Blundell, Z. E. Manson, J. L. Manson, and P. A. Goddard, Physical Review Letters 122, 057207 (2019).

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Do Images of Biskyrmions Show Type-II Bubbles?, J. C. Loudon, A. C. Twitchett-Harrison, D. Cortés-Ortuño, M. T. Birch, L. A. Turnbull, A. Štefančič, F. Y. Ogrin, E. O. Burgos-Parra, N. Bukin, A. Laurenson, H. Popescu, M. Beg, O. Hovorka, H. Fangohr, P. A. Midgley, G. Balakrishnan, and P. D. Hatton, Advanced Materials 31, 1806598 (2019).

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Nuclear spin assisted quantum tunnelling of magnetic monopoles in spin ice, C. Paulsen, S. R. Giblin, E. Lhotel, D. Prabhakaran, K. Matsuhira, G. Balakrishnan, and S. T. Bramwell, Nature Communications 10, 1509 (2019).

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Structural and magnetic properties of GdCo_5-xNi_x, A. L. Tedstone, C. E. Patrick, S. Kumar, R. S. Edwards, M. R. Lees, G. Balakrishnan, and J. B. Staunton, Physical Review Materials 3, 034409 (2019).

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Lattice dynamics and Raman spectrum of BaZrO₃ single crystals, C. Toulouse, D. Amoroso, C. Xin, P. Veber, M. C. Hatnean, G. Balakrishnan, M. Maglione, P. Ghosez, J. Kreisel, and M. Guennou, Physical Review B 100, 134102 (2019).

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Measuring the formation energy barrier of skyrmions in zinc-substituted Cu₂OSeO₃, M. N. Wilson, M. Crisanti, C. Barker, A. Štefančič, J. S. White, M. T. Birch, G. Balakrishnan, R. Cubitt, and P. D. Hatton, Physical Review B 99, 174421 (2019).

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Single crystal growth of BaZrO₃ from the melt at 2700 °C using optical floating zone technique and growth prospects from BaB₂O₄ flux at 1350 °C, C. Xin, P. Veber, M. Guennou, C. Toulouse, N. Valle, M. Ciomaga Hatnean, G. Balakrishnan, R. Haumont, R. Saint Martin, M. Velazquez, A. Maillard, D. Rytz, M. Josse, M. Maglione, and J. Kreisel, CrystEngComm 21, 502 (2019).

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Field-Induced Transitions in Highly Frustrated SrHo₂O₄, O. Young, G. Balakrishnan, P. Manuel, D. D. Khalyavin, A. R. Wildes, O. A. Petrenko, Crystals 9, 488 (2019).

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2018

Preparation and characterization of manganese, cobalt and zinc DNA nanoflowers with tuneable morphology, DNA content and size, Y. R. Baker, J. Chen, J. Brown, A. H. El-Sagheer, P. Wiseman, E. Johnson, P. Goddard, and T. Brown, Nucleic Acids Research 46, 7495 (2018).

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Special temperatures in frustrated ferromagnets, L. Bovo, M. Twengström, O. A. Petrenko, T. Fennell, M. J. P. Gingras, S. T. Bramwell, and P. Henelius, Nature Communications 9, 1999 (2018).

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Magnetisation process in the rare earth tetraborides, NdB₄ and HoB₄, D. Brunt, G. Balakrishnan, D. A. Mayoh, M. R. Lees, D. Gorbunov, N. Qureshi, and O. A. Petrenko, Scientific Reports 8, 232 (2018).

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Coupling between Spin and Charge Order Driven by Magnetic Field in Triangular Ising System LuFe₂O_4+δ, L. Ding, F. Orlandi, D. D. Khalyavin, A. T. Boothroyd, D. Prabhakaran, G. Balakrishnan, and P. Manuel, Crystals 8, 88 (2018).

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Electronic Structure and Enhanced Charge-Density Wave Order of Monolayer VSe₂, J. G. Feng, D. Biswas, A. Rajan, M. D. Watson, F. Mazzola, O. J. Clark, K. Underwood, I. Markovic, M. McLaren, A. Hunter, D. M. Burn, L. B. Duffy, S. Barua, G. Balakrishnan, F. Bertran, P. Le Fevre, T. K. Kim, G. van der Laan, T. Hesjedal, P. Wahl, and P. D. C. King, Nano Letters 18, 4493 (2018).

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Magnetic phases of skyrmion-hosting GaV₄S_8-ySe_y (y = 0, 2, 4, 8) probed with muon spectroscopy, K. J. A. Franke, B. M. Huddart, T. J. Hicken, F. Xiao, S. J. Blundell, F. L. Pratt, M. Crisanti, J. A. T. Barker, S. J. Clark, A. Stefancic, M. C. Hatnean, G. Balakrishnan, and T. Lancaster, Physical Review B 98, 054428 (2018).

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Manifolds of magnetic ordered states and excitations in the almost Heisenberg pyrochlore antiferromagnet MgCr₂O₄, S. Gao, K. Guratinder, U. Stuhr, J. S. White, M. Mansson, B. Roessli, T. Fennell, V. Tsurkan, A. Loidl, M. Ciomaga Hatnean, G. Balakrishnan, S. Raymond, L. Chapon, V. O. Garlea, A. T. Savici, A. Cervellino, A. Bombardi, D. Chernyshov, C. Rüegg, J. T. Haraldsen, and O. Zaharko, Physical Review B 97, 134430 (2018).

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Pauling Entropy, Metastability, and Equilibrium in Dy₂Ti₂O₇ Spin Ice, S. R. Giblin, M. Twengström, L. Bovo, M. Ruminy, M. Bartkowiak, P. Manuel, J. C. Andresen, D. Prabhakaran, G. Balakrishnan, E. Pomjakushina, C. Paulsen, E. Lhotel, L. Keller, M. Frontzek, S. C. Capelli, O. Zaharko, P. A. McClarty, S. T. Bramwell, P. Henelius, T. Fennell, Physical Review Letters 121, 067202 (2018).

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Fermi surface in the absence of a Fermi liquid in the Kondo insulator SmB₆, M. Hartstein, W. H. Toews, Y. T. Hsu, B. Zeng, X. Chen, M. C. Hatnean, Q. R. Zhang, S. Nakamura, A. S. Padgett, G. Rodway-Gant, J. Berk, M. K. Kingston, G. H. Zhang, M. K. Chan, S. Yamashita, T. Sakakibara, Y. Takano, J. H. Park, L. Balicas, N. Harrison, N. Shitsevalova, G. Balakrishnan, G. G. Lonzarich, R. W. Hill, M. Sutherland, S. E. Sebastian, Nature Physics 14, 166 (2017).

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Low temperature magnetic properties of Nd₂Ru₂O₇, S. T. Ku, D. Kumar, M. R. Lees, W. T. Lee, R. Aldus, A. Studer, P. Imperia, S. Asai, T. Masuda, S. W. Chen, J. M. Chen, and L. J. Chang, Journal of Physics: Condensed Matter 30, 155601 (2018).

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Evidence for dynamic kagome ice, E. Lhotel, S. Petit, M. Ciomaga Hatnean, J. Ollivier, H. Mutka, E. Ressouche, M. R. Lees, G. Balakrishnan, Nature Communications 9, 3786 (2018).

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Fermi surfaces in Kondo insulators, H. Liu, M. Hartstein, G. J. Wallace, A. J. Davies, M. C. Hatnean, M. D. Johannes, N. Shitsevalova, G. Balakrishnan, and S. E. Sebastian, Journal of Physics: Condensed Matter 30, 16lt01 (2018).

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Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu₂OSeO₃, J. C. Loudon, A. O. Leonov, A. N. Bogdanov, M. C. Hatnean, and G. Balakrishnan, Physical Review B 97, 134403 (2018).

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Discrete and 1D Polymeric Copper(II) Complexes of Tetranuclear Cubane-like Units: Structural and Magnetic Characterization, S. C. Manna, S. Manna, S. Mistri, A. Patra, E. Zangrando, H. Puschmann, P. A. Goddard, and S. Ghannadzadeh, Chemistryselect 3, 9885 (2018).

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Implications of bond disorder in a S = 1 kagome lattice, J. L. Manson, J. Brambleby, P. A. Goddard, P. M. Spurgeon, J. A. Villa, J. Liu, S. Ghannadzadeh, F. Foronda, J. Singleton, T. Lancaster, S. J. Clark, I. O. Thomas, F. Xiao, R. C. Williams, F. L. Pratt, S. J. Blundell, C. V. Topping, C. Baines, C. Campana, and B. Noll, Scientific Reports 8, 4745 (2018).

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Electron-irradiation induced defects in Yb₂Ti_2.05O₇, A. Mostaed, G. Balakrishnan, M. R. Lees, and R. Beanland, Acta Materialia 143, 291 (2018).

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Calculating the Magnetic Anisotropy of Rare-Earth Transition-Metal Ferrimagnets, C. E. Patrick, S. Kumar, G. Balakrishnan, R. S. Edwards, M. R. Lees, L. Petit, and J. B. Staunton, Physical Review Letters 120, 097202 (2018).

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Field-induced canting of magnetic moments in GdCo₅ at finite temperature: first-principles calculations and high-field measurements, C. E. Patrick, S. Kumar, K. Götze, M. J. Pearce, G. D. Rowlands, G. Balakrishnan, M. R. Lees, P. A. Goddard, and J. B. Staunton, Journal of Physics: Condensed Matter 30, 32LT01 (2018).

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Experimental signatures of emergent quantum electrodynamics in Pr₂Hf₂O₇, R. Sibille, N. Gauthier, H. Yan, M. Ciomaga Hatnean, J. Ollivier, B. Winn, U. Filges, G. Balakrishnan, M. Kenzelmann, N. Shannon, and T. Fennell, Nature Physics 14, 711 (2018).

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Origin of skyrmion lattice phase splitting in Zn-substituted Cu₂OSeO₃, A. Štefančič, S. H. Moody, T. J. Hicken, M. T. Birch, G. Balakrishnan, S. A. Barnett, M. Crisanti, J. S. O. Evans, S. J. R. Holt, K. J. A. Franke, P. D. Hatton, B. M. Huddart, M. R. Lees, F. L. Pratt, C. C. Tang, M. N. Wilson, F. Xiao, and T. Lancaster, Physical Review Materials 2, 111402 (2018).

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2017

Signatures of the Kondo effect in VSe₂, S. Barua, M. C. Hatnean, M. R. Lees, and G. Balakrishnan, Scientific Reports 7, 10964 (2017).

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Suppression of magnetic excitations near the surface of the topological Kondo insulator SmB₆, P. K. Biswas, M. Legner, G. Balakrishnan, M. C. Hatnean, M. R. Lees, D. M. Paul, E. Pomjakushina, T. Prokscha, A. Suter, T. Neupert, and Z. Salman, Physical Review B 95, 020410(R) (2017).

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Probing the interplay between surface and bulk states in the topological Kondo insulator SmB₆ through conductance fluctuation spectroscopy, S. Biswas, M. C. Hatnean, G. Balakrishnan, and A. Bid, Physical Review B 95, 205403 (2017).

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Adiabatic physics of an exchange-coupled spin-dimer system: magnetocaloric effect, zero-point fluctuations, and possible two-dimensional universal behavior, J. Brambleby, P. A. Goddard, J. Singleton, M. Jaime, T. Lancaster, L. Huang, J. Wosnitza, C. V. Topping, K. E. Carreiro, H. E. Tran, Z. E. Manson, and J. L. Manson, Physical Review B 95, 024404 (2017).

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Combining microscopic and macroscopic probes to untangle the single-ion anisotropy and exchange energies in an S = 1 quantum antiferromagnet, J. Brambleby, J. L. Manson, P. A. Goddard, M. B. Stone, R. D. Johnson, P. Manuel, J. A. Villa, C. M. Brown, H. Lu, S. Chikara, V. Zapf, S. H. Lapidus, R. Scatena, P. Macchi, Y.-S. Chen, L.-C. Wu, and J. Singleton, Physical Review B 95, 134435 (2017).

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Field-induced magnetic states in holmium tetraboride, D. Brunt, G. Balakrishnan, A. R. Wildes, B. Ouladdiaf, N. Qureshi, and O. A. Petrenko, Physical Review B 95, 024410 (2017).

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Synthesis and magnetic characterisation of Fe_1-xMg_xSb₂O₄ (x = 0.25, 0.50, 0.75) and their oxygen-excess derivatives, Fe_1-xMg_xSb₂O_4+y, B. P. de Laune, M. J. Whitaker, J. F. Marco, M. F. Thomas, F. J. Berry, M. R. Lees, and C. Greaves, Journal of Materials Chemistry C 5, 4985 (2017).

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Magnetic zeolites: novel nanoreactors through radiofrequency heating, J. Garcia-Aguilar, J. Fernandez-Garcia, E. V. Rebrov, M. R. Lees, P. Z. Gao, D. Cazorla-Amoros, and A. Berenguer-Murcia, Chemical Communications 53, 4262 (2017).

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Single crystal growth, structure and magnetic properties of Pr₂Hf₂O₇ pyrochlore, M. C. Hatnean, R. Sibille, M. R. Lees, M. Kenzelmann, V. Ban, V. Pomjakushin, and G. Balakrishnan, Journal of Physics - Condensed Matter 29, 075902 (2017).

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Terahertz Spectra Revealing the Collective Excitation Mode in Charge-Density-Wave Single Crystal LuFe₂O₄, X. Liu, Z. Jin, Z. Cheng, X. Lin, G. Balakrishnan, G. Ma, Physica Status Solidi (RRL) – Rapid Research Letters 11, 1700177 (2017).

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The enhancement of direct amide synthesis reaction rate over TiO₂@SiO₂@NiFe₂O₄ magnetic catalysts in the continuous flow under radiofrequency heating, Y. W. Liu, N. Cherkasov, P. Z. Gao, J. Fernandez, M. R. Lees, and E. V. Rebrov, Journal of Catalysis 355 , 120 (2017).

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Colossal terahertz magnetoresistance at room temperature in epitaxial La_0.7Sr_0.3MnO₃ nanocomposites and single-phase thin films, J. Lloyd-Hughes, C. D. W. Mosley, S. P. P. Jones, M. R. Lees, A. Chen, Q. X. Jia, E. M. Choi, and J. L. MacManus-Driscoll, Nano Letters 17, 2506 (2017).

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Disorder and Quantum Spin Ice, N. Martin, P. Bonville, E. Lhotel, S. Guitteny, A. Wildes, C. Decorse, M. Ciomaga Hatnean, G. Balakrishnan, I. Mirebeau, and S. Petit, Physical Review X 7, 041028 (2017).

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Atomic structure study of the pyrochlore Yb₂Ti₂O₇ and its relationship with low-temperature magnetic order, A. Mostaed, G. Balakrishnan, M. R. Lees, Y. Yasui, L.-J. Chang, and R. Beanland, Physical Review B 95, 094431 (2017).

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Critical behavior study of the spin ordering transition in RVO₃ (R = Ce, Pr, Nd, Sm, Gd, Er) by means of ac photopyroelectric calorimetry, A. Oleaga, V. Shvalya, V. Liubachko, G. Balakrishnan, L. D. Tung, and A. Salazar, Journal of Alloys and Compounds 703, 210 (2017).

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Spin correlations in the dipolar pyrochlore antiferromagnet Gd₂Sn₂O₇, J. A. M. Paddison, G. Ehlers, O. A. Petrenko, A. R. Wildes, J. S. Gardner, and J. R. Stewart, Journal of Physics-Condensed Matter 29, 144001 (2017).

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Rare-earth/transition-metal magnetic interactions in pristine and (Ni,Fe)-doped YCo₅ and GdCo₅, C. E. Patrick, S. Kumar, G. Balakrishnan, R. S. Edwards, M. R. Lees, E. Mendive-Tapia, L. Petit, and J. B. Staunton, Physical Review Materials 1, 024411 (2017).

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Magnetic excitations in the ground state of Yb₂Ti₂O₇, V. Peçanha-Antonio, E. Feng, Y. Su, V. Pomjakushin, F. Demmel, L.-J. Chang, R. J. Aldus, Y. Xiao, M. R. Lees, T. Brückel, Physical Review B 95, 214415 (2017).

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Evolution of spin correlations in SrDy₂O₄ in an applied magnetic field, O. A. Petrenko, O. Young, D. Brunt, G. Balakrishnan, P. Manuel, D. D. Khalyavin, and C. Ritter, Physical Review B 96, 104442 (2017).

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Electric field controlled magnetization and charge-ordering in Pr_0.6Ca_0.4MnO₃, H. Sharma, M. R. Lees, G. Balakrishnan, D. M. Paul, A. Tulapurkar, and C. V. Tomy, Materials Chemistry and Physics 194, 142 (2017).

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Coulomb spin liquid in anion-disordered pyrochlore Tb₂Hf₂O₇, R. Sibille, E. Lhotel, M. Ciomaga Hatnean, G. J. Nilsen, G. Ehlers, A. Cervellino, E. Ressouche, M. Frontzek, O. Zaharko, V. Pomjakushin, U. Stuhr, H. C. Walker, D. T. Adroja, H. Luetkens, C. Baines, A. Amato, G. Balakrishnan, T. Fennell, and M. Kenzelmann, Nature Communications, 8 892 (2017).

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Order by Quenched Disorder in the Model Triangular Antiferromagnet RbFe(MoO₄)₂, A. I. Smirnov, T. A. Soldatov, O. A. Petrenko, A. Takata, T. Kida, M. Hagiwara, A. Y. Shapiro, and M. E. Zhitomirsky, Physical Review Letters 119, 047204 (2017).

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Growth of YbFe₂O₄ single crystals exhibiting long-range charge order via the optical floating zone method, H. L. Williamson, T. Mueller, M. Angst, and G. Balakrishnan, Journal of Crystal Growth 475, 44 (2017)..

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2016

Structure and magnetism in Cr-embedded Co nanoparticles, S. H. Baker, M. S. Kurt, M. Roy, M. R. Lees, and C. Binns, Journal of Physics. Condensed Matter 28, 046003 (2016).

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Octanuclear Heterobimetallic Ni(4)Ln(4) Assemblies Possessing Ln(4) Square Grid 2 x 2 Motifs: Synthesis, Structure, and Magnetism, S. Biswas, J. Goura, S. Das, C. V. Topping, J. Brambleby, P. A. Goddard, and V. Chandrasekhar, Inorganic Chemistry 55, 8422 (2016).

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Magnetic properties and crystal field in PrZr₂O₇, P. Bonville, S. Guitteny, A. Gukasov, I. Mirebeau, S. Petit, C. Decorse, M. C. Hatnean, and G. Balakrishnan, Physical Review B 94, 134428 (2016).

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Experimental and theoretical electron density analysis of copper pyrazine nitrate quasi-low-dimensional quantum magnets, L. H. R. Dos Santos, A. Lanza, A. M. Barton, J. Brambleby, W. J. A. Blackmore, P. A. Goddard, F. Xiao, R. C. Williams, T. Lancaster, F. L. Pratt, S. J. Blundell, J. Singleton, J. L. Manson, and P. Macchi, Journal of the American Chemical Society 138, 2280 (2016).

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Control of the third dimension in copper-based square-lattice antiferromagnets, P. A. Goddard, J. Singleton, I. Franke, J. S. Möller, T. Lancaster, A. J. Steele, C. V. Topping, S. J. Blundell, F. L. Pratt, C. Baines, J. Bendix, R. D. McDonald, J. Brambleby, M. R. Lees, S. H. Lapidus, P. W. Stephens, B. W. Twamley, M. M. Conner, K. Funk, J. F. Corbey, H. E. Tran, J. A. Schlueter, and J. L. Manson, Physical Review B 93, 094430 (2016).

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Heterometallic trinuclear {Co(2)(III)Ln(III)} (Ln = Gd, Tb, Ho and Er) complexes in a bent geometry. Field-induced single-ion magnetic behavior of the Er-III and Tb-III analogues, J. Goura, J. Brambleby, C. V. Topping, P. A. Goddard, R. S. Narayanan, A. K. Bar, and V. Chandrasekhar, Dalton Transactions 45, 9235 (2016).

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Zirconate Pyrochlore Frustrated Magnets: Crystal Growth by the Floating Zone Technique, M. C. Hatnean, C. Decorse, M. R. Lees, O. A. Petrenko, and G. Balakrishnan, Crystals 6, 79 (2016).

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Ba₄Ru₃O_10.2(OH)_1.8: a new member of the layered hexagonal perovskite family crystallised from water, C. I. Hiley, M. R. Lees, D. L. Hammond, R. J. Kashtiban, J. Sloan, R. I. Smith, and R. I. Walton, Chemical Communications 52, 6375 (2016).

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Probing beneath the surface without a scratch — Bulk non-destructive elemental analysis using negative muons, A. D. Hillier, D. M. Paul, and K. Ishida, Microchemical Journal 125, 203 (2016).

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Fermi-surface topologies and low-temperature phases of the filled skutterudite compounds CeO₄Sb₁₂ and NdOs₄Sb₁₂, P. C. Ho, J. Singleton, P. A. Goddard, F. F. Balakirev, S. Chikara, T. Yanagisawa, M. B. Maple, D. B. Shrekenhamer, X. Lee, and A. T. Thomas, Physical Review B 94, 205140 (2016).

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Antiferromagnetism in a Family of S = 1 Square Lattice Coordination Polymers NiX₂(pyz)₂ (X = Cl, Br, I, NCS; pyz = Pyrazine), J. Liu, P. A. Goddard, J. Singleton, J. Brambleby, F. Foronda, J. S. Möller, Y. Kohama, S. Ghannadzadeh, A. Ardavan, S. J. Blundell, T. Lancaster, F. Xiao, R. C. Williams, F. L. Pratt, P. J. Baker, K. Wierschem, S. H. Lapidus, K. H. Stone, P. W. Stephens, J. Bendix, T. J. Woods, K. E. Carreiro, H. E. Tran, C. J. Villa, and J. L. Manson, Inorganic Chemistry 55, 3515 (2016).

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Bimetallic MOFs (H₃O)(x) Cu(MF₆)(pyrazine)₂(4-x)H₂O (M = V⁴⁺, x = 0; M = Ga³⁺ , x = 1): co-existence of ordered and disordered quantum spins in the V⁴⁺ system, J. L. Manson, J. A. Schlueter, K. E. Garrett, P. A. Goddard, T. Lancaster, J. S. Moller, S. J. Blundell, A. J. Steele, I. Franke, F. L. Pratt, J. Singleton, J. Bendix, S. H. Lapidus, M. Uhlarz, O. Ayala-Valenzuela, R. D. McDonald, M. Gurak, and C. Baines, Chemical Communications 52, 12653 (2016).

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Bulk crystal growth and surface preparation of NiSb, MnSb, and NiMnSb, I. Maskery, C. Burrows, M. Walker, R. P. Singh, G. Balakrishnan, J. A. Duffy, and G. R. Bell, Journal of Vacuum Science & Technology B 34, 041219 (2016).

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Critical behavior study of Pr_1−xSr_xMnO₃ and Nd_1−xSr_xMnO₃ with x = 1/2, A. Oleaga, A. Salazar, M. C. Hatnean, and G. Balakrishnan, Journal of Alloys and Compounds 682, 825 (2016).

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Robust singlet dimers with fragile ordering in two-dimensional honeycomb lattice of Li₂RuO₃, J. Park, T.-Y. Tan, D. T. Adroja, A. Daoud-Aladine, S. Choi, D.-Y. Cho, S.-H. Lee, J. Kim, H. Sim, T. Morioka, H. Nojiri, V. V. Krishnamurthy, P. Manuel, M. R. Lees, S. V. Streltsov, D. I. Khomskii, and J.-G. Park, Scientific Reports 6, 25238 (2016).

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Experimental signature of the attractive Coulomb force between positive and negative magnetic monopoles in spin ice, C. Paulsen, S. R. Giblin, E. Lhotel, D. Prabhakaran, G. Balakrishnan, K. Matsuhira, and S. T. Bramwell, Nature Physics 12, 661 (2016).

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Observation of magnetic fragmentation in spin ice, S. Petit, E. Lhotel, B. Canals, M. Ciomaga Hatnean, J. Ollivier, H. Mutka, E. Ressouche, A. R. Wildes, M. R. Lees, and G. Balakrishnan, Nature Physics 12, 746 (2016).

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Antiferroquadrupolar correlations in the quantum spin ice candidate Pr₂Zr₂O₇, S. Petit, E. Lhotel, S. Guitteny, O. Florea, J. Robert, P. Bonville, I. Mirebeau, J. Ollivier, H. Mutka, E. Ressouche, C. Decorse, M. C. Hatnean, and G. Balakrishnan, Physical Review B 94, 165153 (2016).

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Candidate quantum spin ice in the pyrochlore Pr₂Hf₂O₇, R. Sibille, E. Lhotel, M. C. Hatnean, G. Balakrishnan, B. Fak, N. Gauthier, T. Fennell, and M. Kenzelmann, Physical Review B 94, 024436 (2016).

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Magnetic properties of Sr₃NiIrO₆ and Sr₃CoIrO₆: Magnetic hysteresis with coercive fields of up to 55 T, J. Singleton, J. W. Kim, C. V. Topping, A. Hansen, E.-D. Mun, S. Chikara, I. Lakis, S. Ghannadzadeh, P. Goddard, X. Luo, Y. S. Oh, S.-W. Cheong, and V. S. Zapf, Physical Review B 94, 224408 (2016).

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Heparin-stabilised iron oxide for MR applications: a relaxometric study, L. Ternent, D. A. Mayoh, M. R. Lees, and G.-L. Davies, Journal of Materials Chemistry B 4, 3065 (2016).

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2015

Anomalies of a topologically ordered surface, D. Biswas, S. Thakur, K. Ali, G. Balakrishnan, and K. Maiti, Scientific Reports 5, 10260 (2015).

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Exceptional surface and bulk electronic structures in a topological insulator, Bi₂Se₃, D. Biswas, S. Thakur, G. Balakrishnan, and K. Maiti, Scientific Reports 5, 17351 (2015).

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Robust local and nonlocal transport in the topological Kondo insulator SmB₆ in the presence of a high magnetic field, S. Biswas, R. Nagarajan, S. Sarkar, K. R. Amin, M. C. Hatnean, S. Tewari, G. Balakrishnan, and A. Bid, Physical Review B 92, 085103 (2015).

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Magnetic ground state of the two isostructual polymeric quantum magnets [Cu(HF₂)(pyrazine)₂]SbF₆ and [Co(HF2)(pyrazine)2]SbF₆ investigated with neutron powder diffraction, J. Brambleby, P. A. Goddard, R. D. Johnson, J. Liu, D. Kaminski, A. Ardavan, A. J. Steele, S. J. Blundell, T. Lancaster, P. Manuel, P. J. Baker, J. Singleton, S. G. Schwalbe, P. M. Spurgeon, H. E. Tran, P. K. Peterson, J. F. Corbey, and J. L. Manson, Physical Review B 92, 134406 (2015).

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Quality Heterostructures from Two-Dimensional Crystals Unstable in Air by Their Assembly in Inert Atmosphere, Y. Cao, A. Mishchenko, G. L. Yu, E. Khestanova, A. P. Rooney, E. Prestat, A. V. Kretinin, P. Blake, M. B. Shalom, C. Woods, J. Chapman, G. Balakrishnan, I. V. Grigorieva, K. S. Novoselov, B. A. Piot, M. Potemski, K. Watanabe, T. Taniguchi, S. J. Haigh, A. K. Geim, and R. V. Gorbachev, Nano Letters 15, 4914 (2015).

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Effects of rare-earth size on the electronic structure of La_1-xLu_xVO₃, B. Chen, J. Laverock, D. Newby, Jr., J. F. McNulty, K. E. Smith, P. A. Glans, J. H. Guo, R. M. Qiao, W. L. Yang, M. R. Lees, L. D. Tung, R. P. Singh, and G. Balakrishnan, Journal of Physics - Condensed Matter 27, 105503 (2015).

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Dispersionless Spin Waves and Underlying Field-Induced Magnetic Order in Gadolinium Gallium Garnet, N. d’Ambrumenil, O. A. Petrenko, H. Mutka, and P. P. Deen, Physical Review Letters 114, 227203 (2015).

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Structural, optical and vibrational properties of self-assembled Pb_n+1(Ti_1-xFe_x)_nO_3n+1 Ruddlesden-Popper superstructures, K. I. Doig, J. J. P. Peters, S. Nawaz, D. Walker, M. Walker, M. R. Lees, R. Beanland, A. M. Sanchez, C. F. McConville, V. R. Palkar, and J. Lloyd-Hughes, Scientific Reports 5, 7719 (2015).

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An in-vitro model of mesenchymal stem cell targeting using magnetic particle labelling, A. J. El Haj, J. R. Glossop, H. S. Sura, M. R. Lees, B. Hu, S. Wolbank, M. van Griensven, H. Redl, and J. Dobson, Journal of Tissue Engineering and Regenerative Medicine 9, 724 (2015).

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Magnetic excitation spectrum of LuFe₂O₄ measured with inelastic neutron scattering, S. M. Gaw, H. J. Lewtas, D. F. McMorrow, J. Kulda, R. A. Ewings, T. G. Perring, R. A. McKinnon, G. Balakrishnan, D. Prabhakaran, and A. T. Boothroyd, Physical Review B 91, 035103 (2015).

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Growth of single-crystals of rare-earth zirconate pyrochlores, Ln₂Zr₂O₇ (with Ln = La, Nd, Sm, and Gd) by the floating zone technique, M. Ciomaga Hatnean, M. R. Lees, and G. Balakrishnan, Journal of Crystal Growth 418, 1 (2015).

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Structural and magnetic investigations of single-crystalline neodymium zirconate pyrochlore Nd₂Zr₂O₇, M. Ciomaga Hatnean, M. R. Lees, O. A. Petrenko, D. S. Keeble, G. Balakrishnan, M. J. Gutmann, V. V. Klekovkina, and B. Z. Malkin, Physical Review B 91, 174416 (2015).

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Antiferromagnetism at T > 500 K in the layered hexagonal ruthenate SrRu₂O₆, C. I. Hiley, D. O. Scanlon, A. A. Sokol, S. M. Woodley, A. M. Ganose, S. Sangiao, J. M. De Teresa, P. Manuel, D. D. Khalyavin, M. Walker, M. R. Lees, and R. I. Walton, Physical Review B 92, 104413 (2015).

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Transverse field muon-spin rotation signature of the skyrmion-lattice phase in Cu₂OSeO₃, T. Lancaster, R. C. Williams, I. O. Thomas, F. Xiao, F. L. Pratt, S. J. Blundell, J. C. Loudon, T. Hesjedal, S. J. Clark, P. D. Hatton, M. Ciomaga Hatnean, D. S. Keeble, and G. Balakrishnan, Physical Review B 91, 224408 (2015).

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Enhanced electron correlations at the Sr_xCa_1-xVO₃ surface, J. Laverock, J. Kuyyalil, B. Chen, R. P. Singh, B. Karlin, J. C. Woicik, G. Balakrishnan, and K. E. Smith, Physical Review B 91, 165123 (2015).

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Fluctuations and All-In All-Out Ordering in Dipole-Octupole Nd₂Zr₂O₇, E. Lhotel, S. Petit, S. Guitteny, O. Florea, M. Ciomaga Hatnean, C. Colin, E. Ressouche, M. R. Lees, and G. Balakrishnan, Physical Review Letters 115, 197202 (2015).

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Iron and Manganese Complexes of 2-Carbonyl Pyrrolyls: Scorpionate Sandwich Anions and Extended Structures, L. Li, G. J. Clarkson, M. R. Lees, S. E. Howson, S.-Y. Tan, S. S. Turner, and P. Scott, Organometallics 34, 2543 (2015).

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Magnetic and spectral properties of the multisublattice oxides SrY₂O₄:Er³⁺ and SrEr₂O₄, B. Z. Malkin, S. I. Nikitin, I. E. Mumdzhi, D. G. Zverev, R. V. Yusupov, I. F. Gilmutdinov, R. Batulin, B. F. Gabbasov, A. G. Kiiamov, D. T. Adroja, O. Young, and O. A. Petrenko, Physical Review B 92, 094415 (2015).

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Three-dimensional Ising critical behavior in R_0.6Sr_0.4MnO₃ (R = Pr, Nd) manganites, A. Oleaga, A. Salazar, M. Ciomaga Hantean, and G. Balakrishnan, Physical Review B 92, 024409 (2015).

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Hidden order in spin-liquid Gd₃Ga₅O₁₂, J. A. M. Paddison, H. Jacobsen, O. A. Petrenko, M. T. Fernández-Díaz, P. P. Deen, and A. L. Goodwin, Science 350, 179 (2015).

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Magnetic field driven 2D-3D crossover in the S = 1/2 frustrated chain magnet LiCuVO₄, L. A. Prozorova, S. S. Sosin, L. E. Svistov, N. Büttgen, J. B. Kemper, A. P. Reyes, S. Riggs, A. Prokofiev, and O. A. Petrenko, Physical Review B 91, 174410 (2015).

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Nanomaterials of the Topological Crystalline Insulators, Pb_1-xSn_xTe and Pb_1-xSn_xSe, M. Saghir, A. M. Sanchez, S. A. Hindmarsh, S. J. York, and G. Balakrishnan, Crystal Growth and Design 15, 5202 (2015).

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Raman spectroscopic studies of CuFeO₂ at high pressures, N. P. Salke, K. Kamali, T. R. Ravindran, G. Balakrishnan, and R. Rao, Vibrational Spectroscopy 81, 112 (2015).

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Evidence for a hybridization gap in noncentrosymmetric CeRuSi₃, M. Smidman, D. T. Adroja, E. A. Goremychkin, M. R. Lees, D. M. Paul, and G. Balakrishnan, Physical Review B 91, 064419 (2015).

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Unconventional Fermi surface in an insulating state, B. S. Tan, Y.-T. Hsu, B. Zeng, M. C. Hatnean, N. Harrison, Z. Zhu, M. Hartstein, M. Kiourlappou, A. Srivastava, M. D. Johannes, T. P. Murphy, J.-H. Park, L. Balicas, G. G. Lonzarich, G. Balakrishnan, and S. E. Sebastian, Science 349, 287 (2015).

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2014

Exchange interactions in Ca₃Co₂O₆ probed locally by NMR, G. Allodi, P. Santini, S. Carretta, S. Agrestini, C. Mazzoli, A. Bombardi, M. R. Lees, and R. De Renzi, Physical Review B 89, 104401 (2014).

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Low-temperature magnetic fluctuations in the Kondo insulator SmB₆, P. K. Biswas, Z. Salman, T. Neupert, E. Morenzoni, E. Pomjakushina, F. von Rohr, K. Conder, G. Balakrishnan, M. Ciomaga Hatnean, M. R. Lees, D. McK. Paul, A. Schilling, C. Baines, H. Luetkens, R. Khasanov, and A. Amato, Physical Review B 89, 161107(R) (2014).

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Synthesis, structure and magnetism of the mixed-valent phosphonate phosphonate cage, Mn(II)Mn(III)₁₂(mu₄-O)₆(mu-OH)₆(O₃P-t-Bu)₁₀(OH₂)₂(DMF)₄][2MeOH.4DMF], V. Chandrasekhar, J. Goura, K. Gopal, J. Liu, and P. Goddard, Polyhedron 72, 35 (2014).

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Structural and magnetic properties of single-crystals of the geometrically frustrated zirconium pyrochlore, Pr₂Zr₂O₇, M. C. Hatnean, C. Decorse, M. R. Lees, O. A. Petrenko, D. S. Keeble, and G. Balakrishnan, Materials Research Express 1, 026109 (2014).

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Static magnetic moments revealed by muon spin relaxation and thermodynamic measurements in the quantum spin ice Yb₂Ti₂O₇, L.-J. Chang, M. R. Lees, I. Watanabe, A. D. Hillier, Y. Yasui, and S. Onoda, Physical Review B 89, 184416 (2014).

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Ultrasonic investigations of the spin ices Dy₂Ti₂O₇ and Ho₂Ti₂O₇ in and out of equilibrium, S. Erfanifam, S. Zherlitsyn, S. Yasin, Y. Skourski, J. Wosnitza, A. A. Zvyagin, P. McClarty, R. Moessner, G. Balakrishnan, and O. A. Petrenko, Physical Review B 90, 064409 (2014).

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Crystal growth and characterization of the non-centrosymmetric antiferromagnet Ba₂CuGe₂O₇, R. Fittipaldi, L. Rocco, M. C. Hatnean, V. Granata, M. R. Lees, G. Balakrishnan, and A. Vecchione, Journal of Crystal Growth 404, 223 (2014).

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A Direct Three-Component Reaction for the Isolation of a Nonanuclear Iron(III) Phosphonate, J. Goura, J. J. Liu, P. Goddard, and V. Chandrasekhar, European Journal of Inorganic Chemistry 2014, 4342 (2014).

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Ruthenium(V) Oxides from Low-Temperature Hydrothermal Synthesis, C. I. Hiley, M. R. Lees, J. M. Fisher, D. Thompsett, S. Agrestini, R. I. Smith, and R. I. Walton, Angewandte Chemie Int. Ed. 53, 4423 (2014).

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Controlling Magnetic Order and Quantum Disorder in Molecule-Based Magnets, T. Lancaster, P. A. Goddard, S. J. Blundell, F. R. Foronda, S. Ghannadzadeh, J. S. Möller, P. J. Baker, F. L. Pratt, C. Baines, L. Huang, J. Wosnitza, R. D. McDonald, K. A. Modic, J. Singleton, C. V. Topping, T. A. W. Beale, F. Xiao, J. A. Schlueter, A. M. Barton, R. D. Cabrera, K. E. Carreiro, H. E. Tran, and J. L. Manson, Physical Review Letters 112, 207201 (2014).

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Giant frictional dissipation peaks and charge-density-wave slips at the NbSe₂ surface, M. Langer, M. Kisiel, R. Pawlak, F. Pellegrini, G. E. Santoro, R. Buzio, A. Gerbi, G. Balakrishnan, A. Baratoff, E. Tosatti, and E. Meyer, Nature Materials 13, 173 (2014).

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Low-energy V t(2g) orbital excitations in NdVO₃, J. Laverock, B. Chen, A. R. H. Preston, D. Newby, L. F. J. Piper, L. D. Tung, G. Balakrishnan, P. A. Glans, J. H. Guo, and K. E. Smith, Journal of Physics: Condensed Matter 26, 455603 (2014).

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First-order magnetic transition in Yb₂Ti₂O₇, E. Lhotel, S. R. Giblin, M. R. Lees, G. Balakrishnan, L. J. Chang, and Y. Yasui, Physical Review B 89, 224419 (2014).

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On the path to bulk FeH₂: Synthesis and magnetic properties of amorphous iron (II) hydride, L. Morris, M. L. Trudeau, M. R. Lees, J. V. Hanna, D. and M. Antonelli, Journal of Alloys and Compounds 590, 199 (2014).

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Infrared phonon spectrum of the tetragonal helimagnet Ba₂CuGe₂O₇, A. Nucara, W. S. Mohamed, L. Baldassarre, S. Koval, J. Lorenzana, R. Fittipaldi, G. Balakrishnan, A. Vecchione, and P. Calvani, Physical Review B 90, 014304 (2014).

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Magnetic susceptibility and heat capacity measurements of single crystal TbMnO₃, D. O’Flynn, M. R. Lees, and G. Balakrishnan, Journal of Physics: Condensed Matter 26, 256002 (2014).

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Spin correlations in Ca₃Co₂O₆ : Polarized-neutron diffraction and Monte Carlo study, J. A. M. Paddison, S. Agrestini, M. R. Lees, C. L. Fleck, P. P. Deen, A. L. Goodwin, J. R. Stewart, and O. A. Petrenko, Physical Review B 90, 014411 (2014).

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Oxide heterostructures: Thin spin ice under investigation, O. Petrenko, Nature Materials 13, 430 (2014).

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Low-temperature magnetism in the honeycomb systems SrLn₂O₄, O. A. Petrenko, Low Temperature Physics 40, 106 (2014).

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Synthesis and characterization of nanomaterials of the Topological Crystalline Insulator SnTe, M. Saghir, M. R. Lees, S. J. York, and G. Balakrishnan, Crystal Growth & Design 14, 2009 (2014).

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Electrical transport properties of CaB₆, J. Stankiewicz, J. Sese, G. Balakrishnan, and Z. Fisk, Physical Review B 90, 155128 (2014).

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Magnetic properties of geometrically frustrated SrGd₂O₄, O. Young, G. Balakrishnan, M. R. Lees, and O. A. Petrenko, Physical Review B 90, 094421 (2014).

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Impact of the various spin- and orbital-ordering processes on the multiferroic properties of orthovanadate DyVO₃, Q. Zhang, K. Singh, C. Simon, L. D. Tung, G. Balakrishnan, and V. Hardy, Physical Review B 90, 024418 (2014).

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2013

Electronic structure of the kagome staircase compounds Ni₃V₂O₈ and Co₃V₂O₈, J. Laverock, B. Chen, A. R. H. Preston, K. E. Smith, N. R. Wilson, G. Balakrishnan, P. A. Glans, and J. H. Guo, Physical Review B 87, 125133 (2013).

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Remotely triggered scaffolds for controlled release of pharmaceuticals, Paul Roach, David J. McGarvey, Martin R. Lees, and Clare Hoskins, International Journal of Molecular Sciences 14, 8585 (2013).

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Low-temperature muon spin rotation studies of the monopole charges and currents in Y doped Ho₂Ti₂O₇, L. J. Chang, M. R. Lees, G. Balakrishnan, Y.-J. Kao, and A. D. Hillier, Scientific Reports 3, 1881 (2013).

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Physical stability, biocompatibility and potential use of hybrid iron oxide-gold nanoparticles as drug carriers, Christopher M. Barnett, Mariana Gueorguieva, Martin R. Lees, David J. McGarvey, and Clare Hoskins, Journal of Nanoparticle Research 15, 1706 (2013).

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k-resolved susceptibility function of 2H-TaSe₂ from angle-resolved photoemission, J. Laverock, D. Newby, Jr., E. Abreu, R. Averitt, K. E. Smith, R. P. Singh, G. Balakrishnan, J. Adell, and T. Balasubramanian, Physical Review B 88, 035108 (2013).

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Resonant soft-X-ray emission as a bulk probe of correlated electron behavior in metallic Sr_xCa_1-xVO₃, J. Laverock, B. Chen, K. E. Smith, R. P. Singh, G. Balakrishnan, M. Gu, J.W. Lu, S. A. Wolf, R. M. Qiao, W. Yang, and J. Adell, Physical Review Letters 111, 047402 (2013).

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Juxtaposition of spin freezing and long range order in a series of geometrically frustrated antiferromagnetic gadolinium garnets, J. A. Quilliam, S. Meng, H. A. Craig, L. R. Corruccini, G. Balakrishnan, O. A. Petrenko, A. Gomez, S. W. Kycia, M. J. P. Gingras, and J. B. Kycia, Physical Review B 87, 174421(2013).

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Highly frustrated magnetism in SrHo₂O₄: Coexistence of two types of short-range order, O. Young, A. R. Wildes, P. Manuel, B. Ouladdiaf, D. D. Khalyavin, G. Balakrishnan, and O. A. Petrenko, Phys. Rev. B 88, 024411 (2013).

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Magnetic field-induced ordering in SrDy₂O₄, T. H. Cheffings, M. R. Lees, G. Balakrishnan and O. A. Petrenko, Journal of Physics: Condensed Matter 25, 256001 (2013).

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2012

Effect of the hybrid composition on the physicochemical properties and morphology of iron oxide-gold nanoparticles, C. M. Barnett, M. Gueorguieva, M. R. Lees, D. J. McGarvey, R. J. Darton, and C. Hoskins, Journal of Nanoparticle Research 14, 1170 (2012).

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Depth-dependent magnetism in epitaxial MnSb thin films: effects of surface passivation and cleaning, J. D. Aldous, C. W. Burrows, I. Maskery, M. S. Brewer, T. P. A. Hase, J. A. Duffy, M. R. Lees, C. Sanchez-Hanke, T. Decoster, W. Theis, A. Quesada, A. K. Schmid, and G. R. Bell, Journal of Physics-Condensed Matter 24, 146002 (2012).

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Low temperature magnetic structure of geometrically frustrated SrHo₂O₄, O. Young, L. C. Chapon, and O. A. Petrenko, Journal of Physics Conference Series 391, 012081 (2012).

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Structural phase transitions in the Ag₂Nb₄O₁₁-Na₂Nb₄O₁₁ solid solution, D. I. Woodward, M. R. Lees, and P. A. Thomas, Journal of Solid State Chemistry 192, 385 (2012).

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Bismuth iridium oxide oxygen evolution catalyst from hydrothermal synthesis, K. Sardar, S. C. Ball, J. D. B. Sharman, D. Thompsett, J. M. Fisher, R. A. P. Smith, P. K. Biswas, M. R. Lees, R. J. Kashtiban, J. Sloan, and R. I. Walton, Chemistry of Materials 24, 4192 (2012).

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Structural, spectroscopic, magnetic and electrical characterization of Ca-doped polycrystalline bismuth ferrite, Bi_1−xCa_xFeO_3−x/2 (x ≤ 0.1), Kripasindhu Sardar, Jiawang Hong, Gustau Catalan, P. K. Biswas, Martin R. Lees, Richard I. Walton, James F. Scott, and Simon A. T. Redfern, Journal of Physics: Condensed Matter 24, 045904 (2012).

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Magnetisation studies of geometrically frustrated antiferromagnets SrLn₂O₄, with Ln = Er, Dy, and Ho, Thomas J. Hayes, Olga Young, Geetha Balakrishnan, and Oleg A. Petrenko, Journal of the Physical Society of Japan 81, 024708 (2012).

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Magnetic phases in a Gd₂Ti₂O₇ pyrochlore for a field applied along the [100] axis, O. A. Petrenko, M. R. Lees, G. Balakrishnan, V. N. Glazkov, and S. S. Sosin, Physical Review B 85, 180412(R) (2012).

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Controlling bulk conductivity in topological insulators: key role of anti-site defects, D. O. Scanlon, P. D. C. King, R. P. Singh, A. de la Torre, S. McKeown Walker, G. Balakrishnan, Advanced Materials 24, 2154 (2012).

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Raman scattering study of delafossite magnetoelectric multiferroic compounds:CuFeO₂ and CuCrO₂, O. Aktas, K. D. Truong, T. Otani, G. Balakrishnan, M. J. Clouter, T. Kimura, and G. Quirion, Journal of Physics: Condensed Matter 24, 036003 (2012).

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Higgs transition from a magnetic Coulomb liquid to a ferromagnet in Yb₂Ti₂O₇, Lieh-Jeng Chang, Shigeki Onoda, Yixi Su, Ying-Jer Kao, Ku-Ding Tsuei, Yukio Yasui, Kazuhisa Kakurai and M. R. Lees, Nature Communications 3, 992 (2012).

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Emergent quantum confinement at topological insulator surfaces, M. S. Bahramy, P. D. C. King, A. de la Torre, J. Chang, M. Shi, L. Patthey, G. Balakrishnan, Ph. Hofmann, R. Arita, N. Nagaosa, and F. Baumberger, Nature Communications 3, 1159 (2012).

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2011

Large tunable Rashba spin splitting of a two-dimensional electron gas in Bi₂Se₃, P. D. C. King, R. C. Hatch, M. Bianchi, R. Ovsyannikov, C. Lupulescu, G. Landolt, B. Slomski, J. H. Dil, D. Guan, J. L. Mi, E. D. L. Rienks, J. Fink, A. Lindblad, S. Svensson, S. Bao, G. Balakrishnan, B. B. Iversen, J. Osterwalder, W. Eberhardt, F. Baumberger, and Ph. Hofmann, Physical Review Letters 107, 096802, (2011).

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Intrinsic and extrinsic nonstationary field-driven processes in the spin-ice compound Dy₂Ti₂O₇, S. Erfanifam, S. Zherlitsyn, J. Wosnitza, R. Moessner, O. A. Petrenko, G. Balakrishnan, and A. A. Zvyagin Physical Review B 84, 220404 (2011).

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Isomeric Fe(II) MOFs: from a diamond-framework spin-crossover material to a 2D hard magnet, Lihong Li, Guy J. Clarkson, David J. Evans, Martin R. Lees, Scott S. Turner, and Peter Scott, Chemical Communications 47, 12646 (2011).

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Coexistence of the long-range and short-range magnetic order components in SrEr₂O₄, T. J. Hayes, G. Balakrishnan, P. P. Deen, P. Manuel, L. C. Chapon, and O. A. Petrenko, Physical Review B 84, 174435 (2011).

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Multiferroic properties and magnetic structure of Sm_1−xY_xMnO₃, D. O’Flynn, C.V. Tomy, M.R. Lees, A. Daoud-Aladine, and G. Balakrishnan, Physical Review B 83, 174426 (2011).

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Slow magnetic order-order transition in the spin chain antiferromagnet Ca₃Co₂O₆, S. Agrestini, C. L. Fleck, L. C. Chapon, C. Mazzoli, A. Bombardi, M. R. Lees, and O. A. Petrenko, Physical Review Letters 106, 197204, (2011).

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Unusual line shape of B 1s core level spectra in rare earth hexaborides, Swapnil Patil, Ganesh Adhikary, Geetha Balakrishnan, and Kalobaran Maiti, Solid State Communications 151, 326 (2011).

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Direct hydrothermal synthesis and physical properties of rare-earth and Yttrium orthochromite perovskites, Kripasindhu Sardar, Martin R. Lees, Reza J. Kashtiban, Jeremy Sloan, and Richard I. Walton, Chemistry of Materials 23, 48 (2011).

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On the growth and properties of high quality single crystals of the yttrium doped strontium cobaltates, Y_1−xSr_xCoO_3-d (0.7 < x <0.95), C. L. Fleck, G. Balakrishnan, and M. R. Lees, Journal of Materials Chemistry 21, 1212 (2011).

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Magnetic order in geometrically frustrated Gd₂(Ti_1−xZr_x)₂O₇ (x = 0.02 and 0.15) single crystals, Da-qian Liao, M. R. Lees, D. W. Baker, D. McK. Paul, and G. Balakrishnan, Physical Review B 83, 064403 (2011).

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NMR study of magnetic order, metamagnetic transitions, and low-temperature spin freezing in Ca₃Co₂O₆, G. Allodi, R. De Renzi, S. Agrestini, C. Mazzoli, and M. R. Lees, Physical Review B 83, 104408 (2011).

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Novel magnetite-silica nanocomposite (Fe₃O₄-SBA-15) particles for DNA binding and gene delivery aided by a magnet array, Humphrey P. Yiu, Stuart C. McBain, Zoe A.D. Lethbridge, Martin R. Lees, Iryna Palona, Cristina I. Olariu, Jon Dobson, Journal of Nanoscience and Nanotechnology 11, 3586 (2011).

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Titanium pyrochlore magnets: how much can be learned from magnetization measurements? O. A. Petrenko, M. R. Lees and G. Balakrishnan, Journal of Physics: Condensed Matter 23, 164218 (2011).

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Unusual spectral renormalization in hexaborides, Swapnil Patil, Ganesh Adhikary, G Balakrishnan and Kalobaran Maiti , J. Phys.: Condens. Matter 23, 495601 (2011).

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Structural variety in iridate oxides and hydroxides from hydrothermal synthesis, Kripasindhu Sardar, Janet Fisher, David Thompsett, Martin R. Lees, Guy J. Clarkson, Jeremy Sloan, Reza J. Kashtiban and Richard I. Walton, Chemical Science 2, 1573 (2011).

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The temperature evolution of the magnetic correlations in pure and diluted spin ice Ho_2-xY _xTi₂O₇, L. J. Chang, Y. Su, Y. -J. Kao, Y. Z. Chou, K. Kakurai, R. Mittal, H. Schneider, Th. Bruckel, G. Balakrishnan, and M. R. Lees, Physica B 406, 2393 (2011).

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2010

Coexistance of spiral and commensurate structures in a triangular antiferromagnet KFe(MoO₄)₂, A. I. Smirnov, L. E. Svistov, L. A. Prozorova, A. Zheludev, M. D. Lumsden, E. Ressouche, O. A. Petrenko, M. Hagiwara, S. Kimura, K. Nishikawa, K. Kindo, A. Ya Shapiro and L. N. Demianets, Journal of Physics: Conference Series 200, 032068 (2010).

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Hydrothermal Synthesis of a B-Site Magnetic Ruthenate Pyrochlore, Richard J. Darton, Scott S. Turner, Jeremy Sloan, Martin R. Lees, and Richard I. Walton, Crystal Growth and Design 10, 3819 (2010).

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Spin dynamics in the hyperkagome compound Gd₃Ga₅O₁₂, P. P. Deen, O. A. Petrenko, G. Balakrishnan, B. D. Rainford, C. Ritter, L. Capogna, H. Mutka, and T. Fennell, Physical Review B 82, 174408 (2010).

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Field-driven magnetisation steps in Ca₃Co₂O₆: A single-crystal neutron-diffraction study, C. L. Fleck, M. R. Lees, S. Agrestini, G. J. McIntyre, and O. A. Petrenko, EPL 90, 67006 (2010).

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Thermometers for low temperature Magic Angle Spinning NMR, T. F. Kemp, G. Balakrishnan, K. J. Pike, M. E. Smith, and R. Dupree, Journal of Magnetic Resonance 204, 169 (2010).

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Influence of 4f electronic states on the surface states of rare-earth hexaborides, Swapnil Patil, Ganesh Adhikary, Geetha Balakrishnan, and Kalobaran Maiti, Applied Physics Letters 96, 092106 (2010).

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Kagome staircase compound Co₃V₂O₈ in an applied magnetic field: Single-crystal neutron diffraction study, O. A. Petrenko, N. R. Wilson, G. Balakrishnan, D. McK Paul, and G. J. McIntyre, Physical Review B 82, 104409 (2010).

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Triangular lattice antiferromagnet RbFe(MoO₄)₂, A. I. Smirnov, L. E. Svistov, L. A. Prozorova, O. A. Petrenko, and M. Hagiwara, Physics Uspekhi 53, 844 (2010).

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Magnetic excitations in the XY-pyrochlore antiferromagnet Er₂Ti₂O₇, S. S. Sosin and L. A. Prozorova, M. R. Lees, G. Balakrishnan, and O. A. Petrenko, Physical Review B 82, 094428 (2010).

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Preparation and Characterization of Iron Oxide–Silica Composite Particles Using Mesoporous SBA-15 Silica as Template and Their Internalization Into Mesenchymal Stem Cell and Human Bone Cell Lines, Humphrey H. P. Yiu, Martin J. Maple, Martin R. Lees, Iryna Palona, Alicia J. El Haj, and Jon Dobson, IEEE Transactions on Nanobioscience 9, 165 (2010).

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Damage evolution in Au-implanted Ho₂Ti₂O₇ titanate pyrochlore, Yanwen Zhang, Jacek Jagielski, In-Tae Bae, Xia Xiang, Lionel Thomé, Geetha Balakrishnan, Don M. Paul, and William J. Weber, Nuclear Instruments and Methods in Physics Research B 268, 3009 (2010).

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2009

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Ferro I phase and gadolinium, J. F. Collingwood, S. B. Palmer, M. R. Lees, C. Edwards, J. A. Santos, J. B. Sousa, and D. C. Jiles, Physical Review B 79, 104401 (2009). Full Text PDF: Download (882 kB)

Resonant X-ray scattering study of Ca₃Co₂O₆ ground state: Preliminary results of magnetic field effects, C. Mazzoli, A. Bombardi, S. Agrestini, and M. R. Lees, Physica B-Condensed Matter 404, 3042-3044 (2009).

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Magnetic phase diagram of magnetoelectric CuFeO₂ in high magnetic fields, G. Quirion, M. L. Plumer, O. A. Petrenko, G. Balakrishnan, and C. Proust, Physical Review B 80, 064420 (2009).

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Chiral and collinear ordering in a distorted triangular antiferromagnet", A. I. Smirnov, L. E. Svistov, L. A. Prozorova, A. Zheludev, M. D. Lumsden, E. Ressouche, O. A. Petrenko, K. Nishikawa, S. Kimura, M. Hagiwara, K. Kindo, A. Y. Shapiro, and L. N. Demianets, Physical Review Letters 102, 037202 (2009).

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High quality single crystals of the SrR₂O₄ family of frustrated magnets, G. Balakrishnan, T. J. Hayes, O. A. Petrenko, and D. M. K. Paul, Journal of Physics: Condensed Matter 21, 012202 (2009).

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Low frequency spin dynamics of the frustrated pyrochlore magnet Gd₂Ti₂O₇, A. I. Smirnov, S. S. Sosin, V. N. Glazkov, O. A. Petrenko, G. Balakrishnan, and M. E. Zhitomirsky, Journal of Physics: Conference Series 150,  042188 (2009).

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Field induced magnetic order in the frustrated magnet Gadolinium Gallium Garnet, O. A. Petrenko, G. Balakrishnan, D. McK. Paul, M. Yethiraj, G.J . McIntyre, and A. S. Wills, Journal of Physics: Conference Series 145,  012026 (2009).

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Magnetic measurements of suspended functionalised ferromagnetic beads under DC applied fields, L. V. De Los Santos, J. Llandro, D. Lee, T. Mitrelias, J. J. Palfreyman, T .J. Hayward, J. Cooper, J. A. C. Bland, C. H. W. Barnes, J. L. Arroyo, and M. Lees, Journal of Magnetism and Magnetic Materials 321, 2129 (2009).

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2008

Probing nanoscale inhomogeneities in transition metal oxides with ultrafast mid-infrared spectroscopy, R. P. Prasankumar, H. J. Lee, H. Okamura, H. Imai, Y. Shimakawa, Y. Kubo, S. Zvyagin, K. V. Kamenev, G. Balakrishnan, D. M. Paul, S. A. Trugman, A.J. Taylor, and R. D. Averitt, Physica B-Condensed Matter 403, 1401 (2008).

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Nature of the magnetic order in Ca₃Co₂O₆, S. Agrestini, L. C. Chapon, A. Daoud-Aladine, J. Schefer, A. Gukasov, C. Mazzoli, M. R. Lees, and O. A. Petrenko, Physical Review Letters  101: Art. No. 097207 (2008).

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Spin, orbital ordering, and magnetic dynamics of LaVO₃: Magnetization, heat capacity, and neutron scattering studies, L. D. Tung, A. Ivanov, J. Schefer, M. R. Lees, G. Balakrishnan, and D. M. Paul, Physical Review B 78, 054416 (2008).

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Resonant x-ray scattering investigation of the multipolar ordering in Ca₃Co₂O₆, A. Bombardi, C. Mazzoli, S. Agrestini, and M. R. Lees , Physical Review B 78, 100406 (2008).

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Incommensurate magnetic ground state revealed by resonant x-ray scattering in the frustrated spin system Ca₃Co₂O₆, S. Agrestini, C. Mazzoli, A. Bombardi, and M.R. Lees, Physical Review B 77, 140403 (2008).

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Evidence of soft modes in magnetoelectric CuFeO₂: Ultrasonic velocity measurements and Landau theory, G. Quirion, M. J. Tagore, M. L. Plumer, and O. A. Petrenko, Physical Review B 77, 094111 (2008).

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Spin dynamics of the pyrochlore magnets Gd₂Ti₂O₇ and Gd₂Sn₂O₇ in the paramagnetic state, S. S. Sosin, L. A. Prozorova, A. I. Smirnov, P. Bonville, G. L. J. Bras, and O. A. Petrenko, Physical Review B 77, 104424 (2008).

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Electronic texture of the thermoelectric oxide Na_0.75CoO₂, M. -H. Julien, C. de Vaulx, H. Mayaffre, C. Berthier, M. Horvatic, V. Simonet, J. Wooldridge, G. Balakrishnan, M. R. Lees, D. P. Chen, C. T. Lin, and P. Lejay, Physical Review Letters, 100, 096405 (2008).

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Synthesis of novel magnetic iron metal-silica (Fe-SBA-15) and magnetite-silica (Fe3O4-SBA-15) nanocomposites with a high iron content using temperature-programed reduction, H. H. P. Yiu, M. A. Keane, Z. A. D. Lethbridge, M. R. Lees, A. J. El Haj, and J. Dobson, Nanotechnology 19 , 255606 (2008).

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2007

Low-energy spin dynamics of Heisenberg pyrochlore magnets, S. S. Sosin, A. I. Smirnov, L. A. Prozorova, O. A. Petrenko, M. E. Zhitomirsky, and J. -P. Sanchez, Journal of Magnetism and Magnetic Materials 310, 1590 (2007).

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Small-angle neutron scattering measurements of the vortex lattice in CaC_6, R. Cubitt, J. S. White, M. Laver, M. R. Eskildsen, C. D. Dewhurst, D. M. Paul, A. J. Crichton, M. Ellerby, C. Howard, Z. Kurban, and F. Norris, Physical Review B 75, 140516 (2007).

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Magnetic phase diagrams of the Kagome staircase compounds Co₃V₂O₈ and Ni₃V₂O₈, N.R. Wilson, O.A. Petrenko and G. Balakrishnan, Journal of Physics: Condensed Matter 19, 145257 (2007).

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Magnetization reversal in orthovanadate RVO₃ compounds (R=La, Nd, Sm, Gd, Er, and Y): Inhomogeneities caused by defects in the orbital sector of quasi-one-dimensional orbital systems, L. D. Tung, M. R. Lees, G. Balakrishnan, and D. M. Paul, Physical Review B 75, 104404 (2007).

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Magnetic phases in the Kagome staircase compound Co₃V₂O₈ studied using powder neutron diffraction, N. R. Wilson, O. A. Petrenko, and L. C. Chapon, Physical Review B 75, 094432 (2007).

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Heat capacity and magnetic properties of a EuVO₃ single crystal, L. D. Tung, M. R. Lees, G. Balakrishnan, and D. M. Paul, Physical Review B 76, 064424 (2007). Full Text PDF: Download (645 kB)

2006

Magnetic phase diagram, critical behavior, and two-dimensional to three-dimensional crossover in the triangular lattice antiferromagnet RbFe(MoO₄)₂, L. E. Svistov, A. I. Smirnov, L. A. Prozorova, O. A. Petrenko, A. Micheler, N. Buttgen, A. Y. Shapiro, and L. N. Demianets, Physical Review B 74, 024412 (2006).

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Magnetic resonance in the pyrochlore antiferromagnet Gd₂Ti₂O₇, S. S. Sosin, A. I. Smirnov, L. A. Prozorova, G. Balakrishnan, and M. E. Zhitomirsky, Physical Review B 73, 212402 (2006).

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The magnetic field and pressure dependence of the magnetic ordering transition in Na_xCoO₂ (0.6 <= x <= 0.72), J. Wooldridge, D. M. Paul, G. Balakrishnan, and M. R. Lees,Journal of Physics: Condensed Matter 18, 4731-4739 (2006).

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Tunable temperature-induced magnetization jump in a GdVO₃ single crystal, L. D. Tung, Physical Review B 73, 024428 (2006).

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Effect of externally applied pressure on the magnetic behavior of Cu₂Te₂O₅(Br_xCl_1-x)(₂), S. J. Crowe, M. R. Lees, D. M. Paul, R. I. Bewely, J. Taylor, G. McIntyre, and O. Zaharko, Physical Review B 73, 144410 (2006).

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Incommensurate magnetic ordering in Cu₂Te₂O₅X₂ (X=Cl,Br) studied by single crystal neutron diffraction, O. Zaharko, H. Ronnow, J. Mesot, S. J. Crowe, D. M. Paul, P. J. Brown, A. Daoud-Aladine, A. Meents, A. Wagner, M. Prester, and H. Berger, Physical Review B 73, 064422 (2006).

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O. R. Mercier, R. G. Buckley, H. J. Trodahl, C. Berhard, and G. Balakrishnan, Low-energy excitations in La_1.2Sr_1.8Mn₂O₇ investigated by ellipsometry, Physical Review B 72, 214437 (2005).

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2005

Spin wave dispersion and magnons from short range order in tapiolite (FeTa₂O₆); a quasi-two-dimensional antiferromagnet, J. P. Hague, E. M. L. Chung, D. Visser, G. Balakrishnan, E. Clementyev, D. M. Paul, and M.R. Lees, Journal of Physics: Condensed Matter 17, 7227 (2005).

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Single crystal neutron diffraction study of the magnetisation process in Ca₃Co₂O₆, O. A. Petrenko, J. Wooldridge, M. R. Lees, P. Manuel, and V. Hardy, European Physical Journal B 47, 79 (2005).

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Single crystal growth of CrB₂ using a high-temperature image furnace, G. Balakrishnan, S. Majumdar, M. R. Lees, and D. M. Paul, Journal of Crystal Growth 274, 294 (2005).

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Temperature and field dependence of the spin magnetization density in SmMn₂Ge₂, A. M. Bebb, J. W. Taylor, J. A. Duffy, Z. F. Banfield, M. J. Cooper, M R. Lees, J. E. McCarthy, and D. N. Timms, Physical Review B 71, 024407 (2005).

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Magnetocaloric effect in pyrochlore antiferromagnet Gd₂Ti₂O₇ , S. S. Sosin, L. A. Prozorova, A. I. Smimov, A I. Golov, I. B. Berkutov, O. A. Petrenko, G. Balakrishnan, and M. E. Zhitomirsky, Physical Review B 71, 094413 (2005).

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Field-induced magnetic phase transitions in a GdSi single crystal, L. D. Tung, M. R. Lees, G. Balakrishnan, and D. M. Paul, P. Schobinger-Papamantellos, O. Tegus, P E. Brommer, K H J. Buschow, Physical Review B 71, 144410 (2005).

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Revised magnetic properties of CuFeO₂ - a case of mistaken identity, O. A. Petrenko, M. R. Lees, G. Balakrishnan, S. de Brion, and G. Chouteau, Journal of Physics: Condensed Matter 17, 2741 (2005).

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Adiabatic demagnetization of a pyrochlore antiferromagnet Gd₂Ti₂O₇ ,S. S. Sosin, L. A. Prozorova, A. I. Smirnov, A. I. Golov, I. B. Berkutov, O. A. Petrenko, G. Balakrishnan, and M. E. Zhitomirsky, Jourmal of Magnetism and Magnetic Materials 290, 709 (2005).

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Inelastic neutron scattering study of the spin-gap behavior in Cu₂Te₂O₅Br₂, S. J. Crowe, S. Majumdar, M. R. Lees, D M. Paul, D. T. Adroja, and S. J. Levett, Physica B Condensed-Matter 359, 1219 (2005).

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Neutron inelastic scattering investigation of the magnetic excitations in Cu₂Te₂O₂X₂ (X=Br,Cl), S. J. Crowe, S. Majumdar, M. R. Lees, D. M. Paul, R. I. Bewley, S. J. Levett, and C. Ritter, Physical Review B 71, 224430 (2005).

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Neutron scattering studies of the spin ices Ho₂Ti₂O₇ and Dy₂Ti₂O₇ in applied magnetic field, T. Fennell, O. A. Petrenko, B. Fak, J. S. Gardner, S. T. Bramwell, and B. Ouladdiaf, Physical Review B 72, 224411 (2005).

2004

Quantum tunneling of the magnetization in the Ising chain compound Ca₃Co₂O₆, A. Maignan, V. Hardy, S. Herbert, M. Drillon, M. R. Lees, O. Petrenko, D. M. Paul, and D. Khomskii, Journal of Materials Chemistry 14 1231 (2004).

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Rare earth hexaborides: large single crystals, G. Balakrishnan, M. R. Lees, and D. M. Paul, Journal of Magnetism and Magnetic Materials 272-76, 601 (2004).

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Damage accumulation and amorphization in samarium titanate pyrochlore, Y. Zhang, V. Shuttanandan, R. Devanathan, S. Thevuthasan, D.E. McCready, J. Young, G. Balkrishnan, D.M. Paul, W.J. Weber, Nuclear Instruments and Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 218, 89 (2004).

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Damage evolution on Sm and O sublattices in Au-implanted samarium titanate pyrochlore, Y. Zhang, W. J. Weber, V. Shutthanandan, R. Devanathan, S. Thevuthasan, G. Balakrishnan, and D. M. Paul, Journal of Applied Physics 95, 2866 (2004).

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Magnetic susceptibility and heat capacity investigations of the unconventional spin-chain compound Sr₃CuPtO₆, S. Majumdar, V. Hardy, M. R. Lees, D.M. Paul, H. Rousseliere, and D. Grebille, Physical Review B 69, 024405 (2004).

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Magnetic phase diagram of the antiferromagnetic pyrochlore Gd₂Ti₂O₇, O. A. Petrenko, M. R. Lees, G. Balakrishnan, and D. M. Paul, Physical Review B, 70, 012402 (2004).

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Single crystals of the anisotropic Kagome staircase compounds Ni₃V₂O₈ and Co₃V₂O₈, G. Balakrishnan, O. A. Petrenko, M. R. Lees, and D. M. Paul, Journal of Physics-Condensed Matter 16, L347 (2004).

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Thermal stability and saturation magnetization of a new series of amorphous Fe_80-xCoxP₁₄B₆ (20<=x<=40) alloys, V. I. Tkatch, S. G. Rassolov, V. V. Popov, V. Y. Kameneva, anf O. A. Petrenko, Materials Letters 58, 2988 (2004).

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On the possible coexistence of spiral and collinear structures in antiferromagnetic KFe(MoO₄)(2), L. E. Svistov, A I. Smirnov, L A. Prozorova, O A. Petrenko, A Y. Shapiro, L N. Dem'yanets, JETP Letters 80, 204 (2004).

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Probing cation antisite disorder in Gd₂Ti₂O₇ pyrochlore by site-specific near-edge x-ray-absorption fine structure and x-ray photoelectron spectroscopy, P. Nachimuthu, S. Thevuthasan, M. H. Engelhard, W. J. Weber, D. K. Shuh, N. M. Hamdan, B. S. Mun, E. M. Adams, D E. McCready, V. Shutthanandan, D. W. Lindle, G. Balakrishnan, D. M. Paul, E. M. Gullikson, R. C. C. Perera, J. Lian, L. M. Wang, and R. C. Ewing, Physical Review B 70, 100101 (2004).

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Specific heat studies of PrCoAl₄ single crystal, L. D. Tung, D. M. Paul, M. R. Lees, P. Schobinger-Papamantellos, and K. H. J. Buschow, Journal of Magnetism and Magnetic Materials 281, 378 (2004).

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Neutron scattering investigation of the spin ice state in Dy₂Ti₂O₇,  T. Fennell, O. A. Petrenko, B. Fak, S. T. Bramwell, M. Enjalran, T. Yavors'kii, M. J. P. Gingras, R. G. Melko, and G. Balakrishnan, Physical Review B 70, 134408 (2004).

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Readily prepared metallo-supramolecular triple helicates designed to exhibit spin-crossover behaviour, F. Tuna, M. R. Lees, G. J. Clarkson, anf M. J. Hannon, Chemistry - A European Journal 10, 5737 (2004).

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Magnetic properties of tapiolite (FeTa(2)0(6)); a quasi two-dimensional (2D) antiferromagnet, E. M. L. Chung, M. R. Lees, G. J. McIntyre, C. Wilkinson, G. Balakrishnan, J. P. Hague, D. Visser, and D. M. Paul, Journal of Physics, Condensed Matter 16, 7837 (2004).

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Spin glass-like antiferromagnetic interactions in iron phosphate glasses, J. L. Shaw, A. C. Wright, R. N. Sinclair, G. K. Marasinghe, D. Holland, M. R. Lees, and S C. Scales, Journal of Non-Crystalline Solids 345, 245 (2004).

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Magnetic quantum tunneling in Ca₃Co₂O₆ studied by ac susceptibility: Temperature and magnetic-field dependence of the spin-relaxation time, V. Hardy, D. Flahaut, M. R. Lees, and O. A. Petrenko, Physical Review B 70, 214439 (2004).

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2003

Specific heat investigation of the magnetic ordering in two frustrated spin-chain oxides: Ca₃Co₂O₆ and Ca₃CoRhO₆, V. Hardy, M. R. Lees, A. Maignan, S. Herbert, D. Flahaut, C. Martin, and D. M. Paul, Journal of Physics-Condensed Matter 15, 5737 (2003).

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Growth of large single crystals of rare earth hexaborides, G. Balakrishnan, M. R. Lees and D. M. Paul , Journal of Crystal Growth 256, 206 (2003).

Two- and three-dimensional magnetic order in the layered cobalt oxychloride Sr₂CoO₃Cl, C. S. Knee, D. J. Price, M. R. Lees, and M. T. Weller Physical Review B 68, 174407 (2003).

Role of electronic correlations on the phonon modes of MnO and NiO, E. M. L. Chung, D. M. Paul, G. Balakrishnan, M. R. Lees, A. Ivanov, and M. Yethiraj, Physical Review B 68, 140406 (2003).

Specific heat and magnetization study on single crystals of the frustrated quasi-one-dimensional oxide Ca₃Co₂O₆ , V. Hardy, S. Lambert, M. R. Lees, and D. M. Paul, Physical Review B 68, 014424 (2003).

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Triangular lattice antiferromagnet RbFe(MoO₄)₂ in an applied magnetic field, L. A. Prozorova, L. E. Svistov, A. I. Smirnov, O. A. Petrenko, L. N. Demianets, and A. Y. Shaprio , Journal of Magnetism and Magnetic Materials 258, 394 (2003).

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Quasi-two-dimensional antiferromagnet on a triangular lattice RbFe(MoO₄)₂, L. E. Svistov, A. I. Smirnov, L. A. Prozorova, O. A. Petrenko, L. N. Demianets, A. Y. Shaprio, Physical Review B 67, 094434 (2003).

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Er₂Ti₂O₇: Evidence of quantum order by disorder in a frustrated antiferromagnet, J. D. M. Champion, M. K. Harris, P. C. W. Holdsworth, A. S. Wills, G. Balakrishnan, S. T. Bramwell, E. Cizmar, T. Fennall, J.S. Gardner, J. Lago, D. F. McMorrow, M. Orendac, A. Orendacova, D. M. Paul, R. I. Smith, M. T. F. Telling, and A. Wildes, Physical Review B 68, 020401 (2003).

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Oxygen moment formation and canting in Li₂CuO₂, E. M. L. Chung, G. J. McIntyre, D. M. Paul, G. Balakrishnan, and M. R. Lees, Physical Review B 68, 144410 (2003).

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Magnetic properties of Pr_1-xSr_1+xMnO₄ (0.3 <= x <= 0.8) single crystals, C. V. Tomy, R. Kumar, G. Balakrishnan, M. R. Lees, and D. M. Paul, Acta Physica Polonica B 34, 1493 (2003).

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Triangular lattice antiferromagnet RbFe(MoO₄)₂ in an applied magnetic field, L. A. Prozorova, L. E. Svistov, A. I. Smirnov, O. A. Petrenko, L. N. Demianets, and A. Y. Shaprio, Journal of Magnetism and Magnetic Materials 258, 394 (2003).

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Quasi-two-dimensional antiferromagnet on a triangular lattice RbFe(MoO₄)₂, L. E. Svistov, A. I. Smirnov, L. A. Prozorova, O. A. Petrenko, L. N. Demianets, and A. Y. Shaprio, Physical Review B 67, 094434 (2003).

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Raman scattering study of Nd_1-xSr_xMnO₃ (x = 0.3, 0.5), K.Y. Choi, P. Lemmens, G. Guntherodt, M. Pattabiraman, G. Rangarajan, V. P. Gnezdilov. G. Balakrishnan, D. M. Paul, and M. R. Lees, Journal of Physics-Condensed Matter 15 , 3333 (2003).

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Oxygen moment formation and canting in Li₂CuO₂, E.M.L. Chung, G. J. McIntyre, D. M. Paul, G. Balakrishnan, and M. R. Lees, Physical Review B 68, 144410 (2003). Full Text PDF: Download (745 kB)

Power-law distribution of avalanche sizes in the field-driven transformation of a phase-separated oxide, V. Hardy, S. Majumdar, M. R. Lees, D. M. Paul, C. Yaicle, and M. Hervieu, Physical Review B 70, 104423 (2004).

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Observation of spontaneous magnetization jumps in manganites, V. Hardy, A. Maignan, S. Hebert, C. Yaicle, C. Martin, M. Hervieu, M. R. Lees, G. Rowlands, D. M. Paul, and B. Raveau, Physical Review B 68, 220402 (2003).

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Magnetic behaviour of the tetravalent praseodymium compound Sr₂PrO₄, S. Majumdar, M. R. Lees, G. Balakrishnan, and D. M. Paul Journal of Physics-Condensed Matter 15, 7585 (2003).

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Magnetization process in the spin-ice compound Ho₂Ti₂O₇, O. A. Petrenko, M. R. Lees, and G. Balakrishnan, Physical Review B 68, 012406 (2003).

2002

Quasielastic Neutron Scattering of Liquid Te₅₀Se₅₀ in the Semiconductor-to-Metal Transition Range, A. Chiba, Y. Ohmasa , M. Yao, O. A. Petrenko, and Y. Kawakita , Journal of Phys. Soc. Japan 71, 504 (2002).

Field-induced order and magnetization plateaux in frustrated antiferromagnets, A. Honecker, O. A. Petrenko, and M. E. Zhitomirsky, Physica B 312-313, 609 (2002).

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Temperature dependence of the spin and orbital magnetization density in Sm _0.982Gd _0.018Al₂ around the spin-orbital compensation point, J. W. Taylor, J. A. Duffy, A. M. Bebb, M. R. Lees, L. Bouchenoire, S. D. Brown, and M. J. Cooper, Physical Review B 66, 161319 (2002)

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Spin-polarized electron momentum density distributions in the Invar system Fe₃Pt, J. W. Taylor, J. A. Duffy, A. M. Bebb, J. E. McCarthy, M. R. Lees, M. J. Cooper, and D. N. Timms, Physical Review B 65, 224408 (2002).

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Spin-polarized electron momentum density disributions REMn₂Ge₂ (RE=Gd, La), J. W. Taylor, J. A. Duffy, A. M. Bebb, M. J. Cooper, M. R. Lees, S. Majumdar, J. E. McCarthy, D. N. Timms, C. Detlefs, and P. C. Canfield, Physica B 318, 267 (2002).

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Ferromagnetic Fullerene, R. A.Wood, M. H. Lewis, M. R. Lees, S. M. Bennington, M. G. Cain, and N. Kitamura, J. of Physics: Condensed Matter 14, 385 (2002).

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A comparative study of the atomic dynamics of icosahedral ZnMgHo and ZnMgHo by neutron inelastic scattering, M. Rouijaa, J. B. Suck, R. Sterzel, and O. A. Petrenko, Journal of Alloys and Compounds 342, 314 (2002).

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Domain structure of the anti ferromagnetic insulating state in Nd_0.5Sr_0.5MnO₃, I. O. Shklyarevskiy, A. B. Chizhik, S. L. Gnatchenko, P. J. M. van Bentum, P. C. M. Christianen, J. C. Maan, K. V. Kamenev, G. Balakrishnan, and D. M. Paul, Journal of Magnetism and Magnetic Materials 238, 140 (2002).

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Mn-55 NMR investigation of Nd_1-xSr_xMnO₃ (0.1 <=x <= 0.5), M. Pattabiraman, P. Murugaraj, G. Rangarajan, C. Dimitropoulos, J. P. Ansermet, G. Papavassiliou, G. Balakrishnan, D. M. Paul and M. R. Lees MR, Physical Review B 66, 224415 (2002).

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Growth of SrRuO₃ thin films on MgO substrates by pulsed laser ablation, S. K. Singh, M. R. Lees, R. K. Singh and S. B. Palmer, Journal of Physics D Applied Physics 35, 2243 (2002).

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Field-induced transitions in the highly frustrated magnet gadolinium gallium garnet - long or short ranger order? O. A. Pentrenko, G. Balakrishnan, D. M. Paul, M. Yethiraj and J. Klenke J. Applied Physics A-Materials Science and Processing 74, S760 (2002).

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Field-induced partial order in the spin ice dysprosium titanate, T. Fennell, O. A. Petrenko, G. Balakrishnan, S. T. Bramwell, J. D. M. Champion, B. Fak, M. J. Harris and D. M. Paul, Applied Physics A-Materials Science and Processing 74, S889 (2002).

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Polarized Raman scattering in single crystals of Nd_0.7Sr_0.3MnO₃, M. Pattabiraman, G. Rangarajan, P. K. Y. Choi K. Y, Lemmens, G. Guentherodt, G. Balakrishnan, D. M. Paul and M. R. Lees, Pramana Journal of Physics 58, 1013 (2002).

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Pressure-induced crossover from two - to three dimensional magnetic correlations in La_1.4Sr_1.6Mn₂O₇ manganite, K. V. Kamenev, G. Balakrishnan, D. M. Paul, G. J. Mcintyre, High Pressure Research 22, 135 (2002).

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2001

Classical Heisenberg antiferromagnet on a garnet lattice: A Monte Carlo Simulation, O. A. Petrenko and D. M. Paul, Physical Review B 63, 024409 (2001).

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Advances in catalytic chain transfer polymerisation mediated by cobaloximes. S. A. F. Bon, D. R. Morsley, J. Waterson, D. M. Haddleton, M. R. Lees, and T. Horne, Macromolecular Symposia 165, 29 (2001).

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Thermodynamic and magnetic properties of multicomponent (Fe, Ni)₇₀Zr₁₀B₂₀ amorphous alloy powders made by mechanical alloying, Y. J. Liu, I. T. H. Chang, and M. R. Lees, Materials Scince and Engineering A-Structural Materials Properties Microstructure and Processing 2001, 304, 992 (2001).

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Influences of oxide phases on the coercivity of mechanically alloyed multicomponent Fe-based amorphous alloys, Y. J. Liu, I. T. H. Chang and M. R. Lees, Scripta Materialia 44, 2729-2734 (2001).

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Pressure effects on the magnetic and structural properties of layered manganites, K. V. Kamenev, W. G. Marshall, M. R. Lees, D. M. Paul, G. Balakrishnan, and V. G. Tissen, European Magnetic Materials and Applications 373, 581 (2001).

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X-ray study of Nd_0.5Sr_0.5MnO ₃ manganite structure above and below the ferromagnetic metal-antiferromagnetic insulator spontaneous phase transition, V. Eremenko, S. Gnatchenko, N. Makedonska , Y. Shabakayeva, M. Shvedun, V. Sirenko, J. Fink-Finowicki , K. V. Kamenev, G. Balakrishnan, and D. M. Paul, Low Temperature Physics 27, 930 (2001).

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Domain structure of the antiferromagnetic insulating state in Nd_0.5Sr_0.5MnO ₃:, I. O. Shklyarevskiy, M. Y. Shvedun, S. L. Gnatchenko, P. J. M. van Bentum, P. C. M. Cristianen, J. C. Maan, K. V. Kamenev, G. Balakrishnan, and D. M. Paul, Low Temperature Physics 27, 923 (2001).

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Pressure-enhanced 3D antiferromagnetic correlations in La_1.4Sr_1.6Mn₂O₇, K. V. Kamenev, G. J. McIntyre, Z. Arnold, J. Kamarad, M. R. Lees, G. Balakrishnan, E. M. L. Chung, and D. M. Paul, Physical Review Letters 87, 167203 (2001).

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Optical conductivity studies of La_3/2Sr_1/2NiO₄: Lattice effect on charge ordering, J. H. Jun, D. W. Kim, T. W. Noh, H. C. Kim, H. C. Ri, S. J. Levett , M. R. Lees, D. M. Paul, and G. Balakrishnan, Physical Review B 64, 165106 (2001).

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High magnetic-field study of the magnetization of layered manganite Nd_2-2xSr_1+2xMn₂O₇ single crystals. B. Garcia-Linda, C. Marquina, M. Hilbers, M. R. Ibarra, P. A. Algarabel, A. del Moral, G. Balakrishnan, M. R. Lees, and D. M. Paul, Physica B 294, 107 (2001).

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O(Mn) vibrational bands in double-layered manganites: first and second order Raman scattering, A. E. Pantoja, H. J. Trodahl, A. Fainstein, R. G. Pregliasco, R. C. Buckley, Balakrishnan, M. R. Lees, and D. M. Paul, Physical Review B 63, 132406 (2001).

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2000

Crystal Structures and Magnetic Properties of Rare-Earth Ultraphosphates, RP_5,O₁₄, (R =La, Nd, Sm, Eu, Gd), J. M. Cole, M. R. Lees, J. A. K. Howard, R.J. Newport, G.A. Saunders, and E. Schonherr, Journal of Solid State Chemistry 150, 377 (2000).

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Crossover from low-dimensional to three-dimensional ferromagnetism in CePd_1-xPt_x Sb alloys, D. T. Adroja, J.G.M. Armitage, P. C. Riedi, M. R. Lees, and O.A. Petrenko, Physical Review B 61, 1232 (2000).

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High-Magnetic-Field behavior of the traingular-lattice antiferromagnet CuFeO_2, O. A. Petrenko, G. Balakrishnan, M. R. Lees, D. M. Paul, and A. Hoser, Physical Review B 62, 8983 (2000).

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Field induced ordering in highly frustrated antiferromagnets, M. E. Zhitomirsky, A. Honecker, and O. A. Petrenko, Physical Review Letters 85, 3269 (2000).

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Pressure tuning of magnetic interactions in layered (La_0.6Nd_0.4)_1.2Sr_1.8Mn₂O manganite, K. V. Kamenev, M. R. Lees, G. Balakrishnan, D. M^cK. Paul, W. G. Marshall, V. G. Tissen and M. V. Nefedova, Physical Review Letters 84, 2710 (2000).

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Volume and anisotropic spontaneous striction in layered manganites: Role of charge localization and magnetic interactions, B. Garcia-Landa, C. Marquina, M. R. Ibarra, G. Balakrishnan, M. R. Lees, and D. M^cK. Paul, Physical Review Letters 84, 995 (2000).

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1999

Magnetic frustration and order in gadolinium gallium garnet, O. A. Petrenko, D. McK Paul, C. C. Ritter, T. Zeiske, M. Yethiraj, Physica B 266, 41 (1999).

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Far-infra red vibrational mode in Cu_1-xM_xGe_1-ySi_yO₃ (M=Zn, Cd, Ni), J. J. McGuire, T. Room, T.E. Mason, T. Timusk, H. Dabkowska, S. C. Coad, and D. M^cK. Paul, Physical Review B 59, 1157 (1999).

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Transport and Thermodynamic Properties of CeCu_xAg_1-xAl₃, D. Werner, E. Bauer, J. M. Martin, M. R. Lees, Physica B 261, 10 (1999).