Please use this identifier to cite or link to this item: https://libjncir.jncasr.ac.in/xmlui/handle/10572/354
Title: A Raman study of multiferroic LuMnO3
Authors: Ghosh, Anirban
Sahu, Jyoti Ranjan
Bhat, S Venkataprasad
Rao, C N R
Keywords: Multiferroics
Raman spectroscopy
LuMnO3
Phonons
Hexagonal manganites
YMNO3
Issue Date: Sep-2009
Publisher: Elsevier Science BV
Citation: Solid State Sciences 11(9), 1639–1642 (2009)
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.
Description: Restricted Access
URI: https://libjncir.jncasr.ac.in/xmlui/10572/354
Other Identifiers: 1293-2558
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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