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Raman spectroscopy and X-ray diffraction study of PrMnO3 oriented thin films deposited on LaAlO3 and SrTiO3 substrates

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Title Raman spectroscopy and X-ray diffraction study of PrMnO3 oriented thin films deposited on LaAlO3 and SrTiO3 substrates
 
Creator CHATURVEDI, A
SATHE, VG
 
Subject Jahn-Teller distortion
Manganite thin films
Pulsed laser deposition
Raman spectroscopy
MAGNETIC-STRUCTURE
PEROVSKITE
SPECTRA
LAMNO3
YMNO3
 
Description In this study, the X-ray diffraction and Raman spectroscopy studies of PrMnO3 thin films deposited on different substrates are presented. The effect of strain of opposite nature in these films is reported. A significant change in the Raman band position and out-of-plane lattice parameter is observed on the two films. We do observed anomalous softening in one of the Raman mode frequency across the magnetic ordering temperature in both the films. However, the strain induced by the two different substrates does not seem to affect the Raman spectra, differently across the magnetic transition temperature. This is probably due to weak spins-phonons coupling in these films. (C) 2013 Elsevier BY. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2014-10-16T15:29:14Z
2014-10-16T15:29:14Z
2013
 
Type Article
 
Identifier JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 344230-234
http://dx.doi.org/10.1016/j.jmmm.2013.06.005
http://dspace.library.iitb.ac.in/jspui/handle/100/15905
 
Language en