Evidence for electronic phase separation between orbital orderings in SmVO3

Abstract

We report evidence for phase coexistence of orbital orderings of different symmetry in SmVO${}_3$ by high resolution X-Ray powder diffraction. The phase coexistence is triggered by an antiferromagnetic ordering of the vanadium spins near 130K, below an initial orbital ordering near 200K. The phase coexistence is the result of the intermediate ionic size of samarium coupled to exchange striction at the vanadium spin ordering.

Accepted for publication in Physical Review Letters, supplementary material available at Physical Review Letters

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• Charge ordered ferromagnetic phase in La0.5Ca0.5MnO3
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• An x-ray diffraction study of the temperature-induced structural phase transitions in SmVO3
• Continuous first order orbital order-disorder transition in Nd1-xCaxMnO3
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