One-magnon (electromagnon) light scattering in BiFeO3 single crystals

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dc.creatorSingh, Manoj K.
dc.creatorKatiyar, Ram S.
dc.creatorScott, J. F.
dc.date2007-12-25
dc.date2008-01-28
dc.date.accessioned2026-07-07T08:56:24Z
dc.date.available2026-07-07T08:56:24Z
dc.descriptionWe observed Raman scattering from magnon in frequency range from 10 to 65 cm-1 in BiFeO3 single crystals at cryogenic temperatures; the temperature dependence of the magnon frequency at 18.2 cm-1 approximates an S=5/2 Brillouin function up to the temperature (280 K) at which the magnon becomes overdamped. The diverging cross-section and the frequency-shift at 140K and 200 K implies a magnon-reorientation transition as in orthoferrites. Magnons in polar materials such as BiFeO3 are often termed electromagnons meaning that they possess an electric dipole moment due to magnetoelectric coupling.
dc.description6 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0712.4040
dc.identifierhttp://arxiv.org/abs/0712.4040
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/146595
dc.subjectMaterials Science
dc.subjectOther Condensed Matter
dc.titleOne-magnon (electromagnon) light scattering in BiFeO3 single crystals
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