Selected Recent Publications

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• Ground State in a Half-Doped Manganite Distinguished by Neutron Spectroscopy

  G. E. Johnstone, T. G. Perring, O. Sikora, D. Prabhakaran, and A.T. Boothroyd

  Phys. Rev. Lett. 109 (2012) 237202.

• Electric field control of chiral magnetic domains in the high-temperature multiferroic CuO

  P. Babkevich, A. Poole, R. D. Johnson, B. Roessli, D. Prabhakaran, and A.T. Boothroyd

  Phys. Rev. B 85 (2012) 134428.

• Femtoscale magnetically induced lattice distortions in TbMnO₃

  H.C. Walker, F. Fabrizi, L. Paolasini, F. de Bergevin, J. Herrero-Martin, A.T. Boothroyd, D. Prabhakaran, and D.F. McMorrow

  Science 333 (2011) 1273.

• Cu₃Nb₂O₈: A multiferroic with chiral coupling to the crystal structure

  R. D. Johnson, S. Nair, L. C. Chapon, A. Bombardi, C. Vecchini, D. Prabhakaran, A. T. Boothroyd and P. G. Radaelli

  Phys. Rev. Lett. 107 (2011) 137205.

• Antiferromagnetic spin fluctuations in LiFeAs observed by neutron scattering

  A. E. Taylor, M. J. Pitcher, R. A. Ewings, T. G. Perring, S. J. Clarke, and A. T. Boothroyd

  Phys. Rev. B 83 (2011) 220514(R).

• Itinerant spin excitations in SrFe₂As₂ measured by inelastic neutron scattering

  R. A. Ewings, T. G. Perring, J. Gillett, S. D. Das, S. E. Sebastian, A. E. Taylor, T. Guidi, and A. T. Boothroyd

  Phys. Rev. B 83 (2011) 214519.

• Spin anisotropy of the resonance peak in superconducting FeSe_0.5Te_0.5

  P. Babkevich, B. Roessli, S. N. Gvasaliya, L.-P. Regnault, P. G. Freeman, E. Pomjakushina, K. Conder, and A. T. Boothroyd

  Phys. Rev. B 83 (2011) 180506(R).

• Photoinduced melting of antiferromagnetic order in La_0.5Sr_1.5MnO₄ measured using ultrafast resonant soft x-ray diffraction

  H. Ehrke, R. I. Tobey, S. Wall, S. A. Cavill, M. Först, V. Khanna, Th. Garl, N. Stojanovic, D. Prabhakaran, A. T. Boothroyd M. Gensch, A. Mirone, P. Reutler, A. Revcolevschi, S. S. Dhesi, and A. Cavalleri

  Phys. Rev. Lett. 106 (2011) 217401.

• Observation of orbital currents in CuO

  V. Scagnoli, U. Staub, Y. Bodenthin, R. A. de Souza, M. Garcia-Fernandez, M. Garganourakis, A. T. Boothroyd, D. Prabhakaran, S. W. Lovesey

  Science 332 (2011) 696–698.

• An hour-glass magnetic spectrum in an insulating, hole-doped antiferromagnet

  A. T. Boothroyd, P. Babkevich, D. Prabhakaran, and P. G. Freeman

  Nature 471 (2011) 341–344.

• Magnetic spectrum of the two-dimensional antiferromagnet La₂CoO₄ studied by inelastic neutron scattering

  P. Babkevich, D. Prabhakaran, C. D. Frost, and A. T. Boothroyd

  Phys. Rev. B 82 (2010) 184425.

• Antiferromagnetically spin polarized oxygen observed in magnetoelectric TbMn₂O₅

  T. A. W. Beale, S. B. Wilkins, R. D. Johnson, S. R. Bland, Y. Joly, T. R. Forrest, D. F. McMorrow, F. Yakhou, D. Prabhakaran, A. T. Boothroyd, and P. D. Hatton

  Phys. Rev. Lett. 105 (2010) 087203.

• Magnetic excitations of Fe_1+ySe_xTe_1−x in magnetic and superconductive phases

  P. Babkevich, M. Bendele, A. T. Boothroyd, K. Conder, S. N. Gvasaliya, R. Khasanov, E. Pomjakushina and B. Roessli

  J. Phys.: Condens. Matter 22 (2010) 142202.

• Nature of the magnetic order and origin of induced ferroelectricity in TbMnO₃

  S. B Wilkins, T. R. Forrest, T. A. W. Beale, S. R. Bland, H. C. Walker, D. Mannix, F. Yakhou, D. Prabhakaran,

  A. T. Boothroyd, J. P. Hill, P. D. Hatton, and D. F. McMorrow

  Phys. Rev. Lett. 103 (2009) 207602.

• Coexistence of incommensurate magnetism and superconductivity in Fe_1+ySe_xTe_1–x

  R. Khasanov, M. Bendele, A. Amato, P. Babkevich, A. T. Boothroyd, A. Cervellino, K. Conder, S. N. Gvasaliya, H. Keller, H.-H. Klauss, H. Luetkens, V. Pomjakushin, E. Pomjakushina, and B. Roessli

  Phys. Rev. B 80 (2009) 140511(R).

• Inward dispersion of the spin excitation spectrum of stripe-ordered La₂NiO_4+δ

  P.G. Freeman, M. Enderle, S.M. Hayden, C.D. Frost, D.X. Yao, E.W. Carlson, D. Prabhakaran, and A.T. Boothroyd

  Phys. Rev. B 80 (2009) 144523.

• Magnetic Coulomb Phase in the Spin Ice Ho₂Ti₂O₇

  T. Fennell, P.P. Deen, A.R. Wildes, K. Schmalzl, D. Prabhakaran, A.T. Boothroyd, R.J. Aldus, D.F. McMorrow, and S.T. Bramwell

  Science, 326 (2009) 415–417.

• Magnetic Order and Dynamics of the Charge-Ordered Antiferromagnet La_1.5Sr_0.5CoO₄

  L.M. Helme, A.T. Boothroyd, R. Coldea, D. Prabhakaran, C.D. Frost, D.A. Keen, L.P. Regnault, P.G. Freeman, M. Enderle, and J. kulda

  Phys. Rev. B 80 (2009) 134414.

• Circularly Polarized X rays as a Probe of Noncollinear Magnetic Order in Multiferroic TbMnO₃

  F. Fabrizi, H.C. Walker, L. Paolasini, F. de Bergevin, A.T. Boothroyd, D. Prabhakaran, and D.F. McMorrow

  Phys. Rev. Lett 102 (2009) 237205.

• Going beyond the dipole approximation to improve the refinement of magnetic structures by neutron diffraction

  M. Rotter and A.T. Boothroyd

  Phys. Rev. B  79 (2009) 140405(R).

• Thermally-induced rotation of 3d orbital stripes in Pr(Sr_0.1Ca_0.9)₂Mn₂O₇

  T.A.W. Beale, S.R. Bland, R.D. Johnson, P.D. Hatton, J.C. Cezar, S.S. Dhesi, M.v. Zimmermann, D. Prabhakaran, and A.T. Boothroyd

  Phys. Rev. B  79 (2009) 054433.

• High energy spin excitations in BaFe₂As₂ observed by inelastic neutron scattering

  R.A. Ewings, T.G. Perring, R.I. Bewley, T. Guidi, M.J. Pitcher, D.R. Parker, S.J. Clarke, and A.T. Boothroyd

  Phys. Rev. B  78 (2008) 220501(R).

• Structure and Superconductivity of LiFeAs

  M.J. Pitcher, D.R. Parker, P. Adamson, S.J.C. Herkelrath, A.T. Boothroyd, R.M. Ibberson, M. Brunelli, S.J. Clarke

  Chem. Commun. (2008) 5918–5920.

• Ultrafast electronic phase transition in La_1/2Sr_3/2MnO₄ by coherent vibrational excitation: evidence for nonthermal melting of orbital order

  R.I. Tobey, D. Prabhakaran, A.T. Boothroyd, and A. Cavalleri

  Phys. Rev. Lett. 101 (2008) 197404.

Prof. Andrew Boothroyd

Clarendon Laboratory

Department of Physics

Oxford University

Oxford, OX1 3PU

United Kingdom

phone

 +44 (0) 1865 272376

fax

+44 (0) 1865 272400

a.boothroyd@physics.ox.ac.uk

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