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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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File | Description | Size | Format | |
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S No 19 2009 Solid State Sciences 11 1639–1642.pdf Restricted Access | 424.5 kB | Adobe PDF | View/Open Request a copy |
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