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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/4740

Title: Lattice dynamics of multiferroic BiFeO3 studied by inelastic x-ray scattering
Authors: Borissenko, E
Goffinet, M
Bosak, A
Rovillain, P
Cazayous, M
Colson, D
Ghosez, P
Krisch, M
Keywords: BISMUTH
FERRITE
RAMAN SPECTROSCOPY
CRYSTALS
SYMMETRY
IRON
Issue Date: 13-Mar-2013
Publisher: IOP Publishing Ltd.
Citation: Borissenko, E., Goffinet, M., Bosak, A., Rovillain, P., Cazayous, M., Colson, D., Ghosez, P., & Krisch, M. (2013). Lattice dynamics of multiferroic BiFeO3 studied by inelastic x-ray scattering. Journal of Physics-Condensed Matter, 25 (10), Article Number 102201.
Abstract: We report an experimental study of the phonon dispersion in BiFeO3 single crystals at ambient conditions by inelastic x-ray scattering (IXS). The phonon dispersions were recorded along several symmetry directions up to 35 meV. Our results compare favorably with first-principles calculations performed using density functional theory (DFT) within the local-density approximation (LDA). We resolve a discrepancy concerning the symmetry of the optical phonon branches observed by Raman spectroscopy, determine the energy of the lowest Raman and infrared silent mode, and derive a subset of the elastic moduli of BiFeO3. © 2011 IOP Publishing LTD.
URI: http://dx.doi.org/10220110.1088/0953-8984/25/10/102201
http://apo.ansto.gov.au/dspace/handle/10238/4740
ISSN: 0953-8984
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