A Raman study of multiferroic LuMnO3

Ghosh, Anirban; Sahu, Jyoti Ranjan; Bhat, S Venkataprasad; Rao, C N R

dc.contributor.author	Ghosh, Anirban
dc.contributor.author	Sahu, Jyoti Ranjan
dc.contributor.author	Bhat, S Venkataprasad
dc.contributor.author	Rao, C N R
dc.date.accessioned	2012-02-08T11:34:57Z
dc.date.available	2012-02-08T11:34:57Z
dc.date.issued	2009-09
dc.identifier	1293-2558	en_US
dc.identifier.citation	Solid State Sciences 11(9), 1639–1642 (2009)	en_US
dc.identifier.uri	https://libjncir.jncasr.ac.in/xmlui/10572/354
dc.description	Restricted Access	en_US
dc.description.abstract	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. (C) 2009 Elsevier Masson SAS. All rights reserved.	en_US
dc.description.sponsorship	University Grants Commission (UGC), Government of India	en_US
dc.description.uri	http://dx.doi.org/10.1016/j.solidstatesciences.2009.06.002	en_US
dc.language.iso	en	en_US
dc.publisher	Elsevier Science BV	en_US
dc.rights	© 2009 Elsevier Masson SAS	en_US
dc.subject	Multiferroics	en_US
dc.subject	Raman spectroscopy	en_US
dc.subject	LuMnO3	en_US
dc.subject	Phonons	en_US
dc.subject	Hexagonal manganites	en_US
dc.subject	YMNO3	en_US
dc.title	A Raman study of multiferroic LuMnO3	en_US
dc.type	Article	en_US