A Raman study of multiferroic LuMnO3
Data(s) |
01/09/2009
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Resumo |
Magnetic and dielectric measurements confirm the multiferroic nature of LuMnO3. Raman spectra of LuMnO3 have been recorded in the 77-800 K range covering both the antiferromagnetic transition at 90 K and the ferroelectric-paraelectric transition at 750 K. The changes in the phonon modes frequencies and band-widths indicate the presence of phonon-spin coupling in the antiferromagnetically ordered phase. The ferroelectric-paraelectric transition is accompanied by the broadening and disappearance of many of the phonon modes. Some of the phonon modes also show anomalies at the ferroelectric transition. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/24205/1/fulltext.pdf Ghosh, Anirban and Sahu, Jyoti Ranjan and Bhat, S Venkataprasad and Rao, CNR (2009) A Raman study of multiferroic LuMnO3. In: Solid State Sciences, 11 (9). pp. 1639-1642. |
Publicador |
Elsevier Science |
Relação |
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6W6W-4WHFDBH-3&_user=512776&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000025298&_version=1&_urlVersion=0&_userid=512776&md5=44fc444c318505a389fe77e63c182a93 http://eprints.iisc.ernet.in/24205/ |
Palavras-Chave | #Materials Engineering (formerly Metallurgy) |
Tipo |
Journal Article PeerReviewed |