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Micro-Raman study of the spin and orbital ordering in SmVO3

By E. Siranidi, D. Lampakis, D. Palles, E. Liarokapis and T.T.M. Palstra


The spin and orbital ordering have been examined for high-quality SmVO3 polycrystalline compound using Raman spectroscopy. Measurements were obtained on individual microcrystallites in the approximate y(zz)¯y and y(xx)¯y scattering configurations at low temperatures (down to 20K). Based on our experimental data we present evidence of a coexistence of the G and C-type OO phases that occur in SmVO3 for temperatures below 100K. This phase coexistence of orbital orderings puts SmVO3 in a different category from all the other RVO3 compounds that have been studied yet.

Year: 2009
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