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Magnetic excitations in multiferroic LuMnO3 studied by inelastic neutron scattering

Physical Review B - Condensed Matter and Materials Physics 82:18 (2010)

Authors:

HJ Lewtas, AT Boothroyd, M Rotter, D Prabhakaran, H Müller, MD Le, B Roessli, J Gavilano, P Bourges

Abstract:

We present data on the magnetic and magnetoelastic coupling in the hexagonal multiferroic manganite LuMnO3 from inelastic neutron scattering, magnetization, and thermal-expansion measurements. We measured the magnon dispersion along the main symmetry directions and used this data to determine the principal exchange parameters from a spin-wave model. An analysis of the magnetic anisotropy in terms of the crystal field acting on the Mn is presented. We compare the results for LuMnO3 with data on other hexagonal R MnO3 compounds. © 2010 The American Physical Society.
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Itinerant Spin Excitations in SrFe2As2 Measured by Inelastic Neutron Scattering

(2010)

Authors:

RA Ewings, TG Perring, J Gillett, SD Das, SE Sebastian, AE Taylor, T Guidi, AT Boothroyd
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Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5

(2010)

Authors:

P Babkevich, B Roessli, SN Gvasaliya, L-P Regnault, PG Freeman, E Pomjakushina, K Conder, AT Boothroyd
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The first 21 years of reverse Monte Carlo modelling—a workshop held in Budapest, Hungary (1–3 October 2009)

Journal of Physics Condensed Matter IOP Publishing 22:40 (2010) 400301

Authors:

David A Keen, László Pusztai
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The hydrogen-bonding transition and isotope-dependent negative thermal expansion in H3Co(CN)6

Journal of Physics Condensed Matter IOP Publishing 22:40 (2010) 404202

Authors:

David A Keen, Martin T Dove, John SO Evans, Andrew L Goodwin, Lars Peters, Matthew G Tucker
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