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Study Of Lattice Dynamics In Yttrium Doped NdMnO3 Using Raman Spectroscopy

Yadav, Ruchika and Nair, Harikrishnan S and Elizabeth, Suja (2014) Study Of Lattice Dynamics In Yttrium Doped NdMnO3 Using Raman Spectroscopy. In: 58th DAE Solid State Physics Symposium, DEC 17-21, 2013, Thapar Univ, Patiala, INDIA, pp. 1554-1556.

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Official URL: http://dx.doi.org/10.1063/1.4873031

Abstract

A systematic study of Raman spectra on Yttrium doped NdMnO3 polycrystalline samples was undertaken to understand the lattice dynamics in this compound. Raman active phonons were analyzed and the observed peak were assigned to elucidate various phonon modes in the range (200 - 800) cm(-1). It was observed that at 325 cm(-1) phonon frequency shifts upward as much as upto 4 % with increase in Yttrium content. Lattice distortions manifest themselves by frequency shifts in both bending and tilt modes of MnO6 octahedra, resulting in increase of Raman band line-widths.

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA.
Keywords: Manganites; Raman Spectroscopy
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 08 Nov 2014 05:22
Last Modified: 08 Nov 2014 05:22
URI: http://eprints.iisc.ac.in/id/eprint/50187

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