Metal-Insulator Transition in Mn Perovskite Compounds

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dc.creatorMotome, Yukitoshi
dc.creatorNakano, Hiroki
dc.creatorImada, Masatoshi
dc.date1998-11-16
dc.date.accessioned2026-07-07T03:12:05Z
dc.date.available2026-07-07T03:12:05Z
dc.descriptionWe discuss Mott insulating and metallic phases of a model with $e_g$ orbital degeneracy to understand physics of Mn perovskite compounds. Quantum Monte Carlo and Lanczos diagonalization results are discussed in this model. To reproduce experimental results on charge gap and Jahn-Teller distortions, we show that a synergy between the strong correlation effects and the Jahn-Teller coupling is important. The incoherent charge dynamics and strong charge fluctuations are characteristic of the metallic phase accompanied with critical enhancement of short-ranged orbital correlation near the insulator.
dc.description12 pages, LaTeX, 6figures included
dc.identifierhttps://arxiv.org/abs/cond-mat/9811221
dc.identifierhttp://arxiv.org/abs/cond-mat/9811221
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28776
dc.subjectStrongly Correlated Electrons
dc.titleMetal-Insulator Transition in Mn Perovskite Compounds
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