Evidence for electronic phase separation between orbital orderings in SmVO3

Details Evidence for electronic phase separation between orbital orderings in SmVO3 Evidence for electronic phase separation between orbital orderings in SmVO3

2005-11-30

arxiv.org/abs/cond-mat/0511744v1

Physics

Condensed Matter

Strongly Correlated Electrons

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

Scientific paper

10.1103/PhysRevLett.96.036401

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.

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