Orbitally Degenerate Spin-1 Model for Insulating V{sub 2}O{sub 3}

Journal Article · Mon Aug 21 00:00:00 EDT 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.85.1714· OSTI ID:20217489

Mila, F ^[1]; Shiina, R ^[2]; Zhang, F -C ^[3]; Joshi, A ^[3]; Ma, M ^[3]; Anisimov, V ^[4]; Rice, T M ^[2]

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1. Laboratoire de Physique Quantique, Universite Paul Sabatier, 31062 Toulouse, (France)
2. Theoretische Physik, ETH-Hoenggerberg, CH-8093 Zuerich, (Switzerland)
3. Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221 (United States)
4. Institute of Metal Physics, Russian Academy of Sciences, 620219, Ekaterinburg, GSP-170, Russia (Russian Federation)

Motivated by recent neutron, x-ray absorption, and resonant scattering experiments, we revisit the electronic structure of V{sub 2}O {sub 3} . We propose a model in which S=1 V{sup 3+} ions are coupled in the vertical V-V pairs forming twofold 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. (c) 2000 The American Physical Society.

• OSTI ID: 20217489
• Journal Information: Physical Review Letters, Vol. 85, Issue 8; Other Information: PBD: 21 Aug 2000; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
VANADIUM OXIDES
ELECTRONIC STRUCTURE
ANTIFERROMAGNETIC MATERIALS
DIELECTRIC MATERIALS
MOLECULAR ORBITAL METHOD
NEUTRON DIFFRACTION
SPIN ORIENTATION
THEORETICAL DATA