Comment on "Orbitally degenerate spin-1 model for insulating V2O3"

Details Comment on "Orbitally degenerate spin-1 model for insulating V2O3" Comment on "Orbitally degenerate spin-1 model for insulating V2O3"

2000-12-14

arxiv.org/abs/cond-mat/0012257v1

Physics

Condensed Matter

Strongly Correlated Electrons

3 pages in RevTex, no figures

Scientific paper

We criticize the model proposed by Mila et al. (Phys.Rev.Lett. 85 (2000) 1714) for the description of the V3+ ion in V2O3 by pointing out that it is completely artificial because the condition about the degenerate (doublet) orbital ground state required for the authors' model cannot be realized in the reality. We claim that the V3+ ion should be considered as described by the quantum numbers S=1 and L=3 and with taking into account the orbital moment and the intra-atomic spin-orbit coupling. PACS: 71.70.E, 75.10.D

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