Orbitally Degenerate Spin-1 Model for Insulating V2O3

Details Orbitally Degenerate Spin-1 Model for Insulating V2O3 Orbitally Degenerate Spin-1 Model for Insulating V2O3

2000-05-29

arxiv.org/abs/cond-mat/0005506v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, including three figures

Scientific paper

10.1103/PhysRevLett.85.1714

Motivated by recent neutron, X-ray absorption and resonant scattering experiments, we revisit the electronic structure of V2O3. We propose a model in which S=1 V3+ ions are coupled in the vertical V-V pairs forming two-fold orbitally degenerate configurations with S=2. Ferro-orbital ordering of the V-V pairs gives a description which is consistent with all experiments in the antiferromagnetic insulating phase.

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