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Author Kotliar, G. ♦ Kajueter, H.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ HUBBARD MODEL ♦ PHASE TRANSFORMATIONS ♦ ELECTRIC CONDUCTIVITY ♦ VANADIUM OXIDES ♦ LANTHANUM OXIDES ♦ STRONTIUM OXIDES ♦ TITANIUM OXIDES ♦ CALCIUM OXIDES ♦ BAND THEORY ♦ EFFECTIVE MASS ♦ OPTICAL PROPERTIES
Abstract We investigate the Mott transition in infinite dimensions in the orbitally degenerate Hubbard model. The qualitative features of the Mott transition found in the one-band model are also present in the orbitally degenerate case. We show that the quantitative aspects of the low-energy behavior near the Mott insulating state with one electron per site are not very sensitive to orbital degeneracy, justifying the quantitative success of the one-band model which had been previously applied to orbitally degenerate systems. We contrast this with quantities that have a sizable dependence on the orbital degeneracy and comment on the role of the intra-atomic exchange {ital J}. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-11-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 20


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