Document Detail

Observation of phonons in multiferroic BiFeO(3) single crystals by Raman scattering.
MedLine Citation:
PMID:  21694169     Owner:  NLM     Status:  In-Data-Review    
We have grown BiFeO(3) bulk single crystals by a flux method and characterized the phonon spectra in detail by Raman scattering in the temperature range 4-1100 K. All the 13 Raman-active phonon modes predicted by group theory, 4A(1)+9E, were observed at low temperature and successfully assigned by a polarized Raman measurement. Moreover, drastic spectral changes in the Raman spectra were observed at temperatures 600-700 K and 1000-1100 K. These features are discussed from the viewpoint of phonon coupling with the magnetic ordering and the structural phase transition, respectively.
H Fukumura; S Matsui; H Harima; T Takahashi; T Itoh; K Kisoda; M Tamada; Y Noguchi; M Miyayama
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Publication Detail:
Type:  Journal Article     Date:  2007-08-24
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  19     ISSN:  0953-8984     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2011-06-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  365224     Citation Subset:  -    
Department of Electronics and Information Science, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
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