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Study of phase coexistence in YVO 3 and LaVO 3
Author(s) -
Roberge Benoit,
Jandl Serge,
Nugroho Agung A.,
Palstra Thomas T. M.,
Tung Le D.,
Balakrishnan Geetha
Publication year - 2015
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.4735
Subject(s) - raman spectroscopy , ionic radius , phase (matter) , phonon , radius , ionic bonding , materials science , chemistry , raman scattering , analytical chemistry (journal) , condensed matter physics , optics , physics , ion , computer security , organic chemistry , computer science , chromatography
The coexistence at low temperature in YVO 3 and LaVO 3 of two competing phases with defined orbital and spin orientations is studied by Raman spectroscopy. The temperature evolution of the phonons indicates that phase coexistence, due to strain in YVO 3 and fluctuations in LaVO 3 , is not restricted to small R ionic radius in RVO 3 compounds. Also, a typical temperature at 50 K is inferred from the temperature dependence of the intensities in LaVO 3 . Copyright © 2015 John Wiley & Sons, Ltd.