TY - JOUR
T1 - Metal-insulator transition in Mn perovskite compounds
AU - Motome, Yukitoshi
AU - Nakano, Hiroki
AU - Imada, Masatoshi
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1999/8/16
Y1 - 1999/8/16
N2 - We discuss Mott insulating and metallic phases of a model with eg orbital degeneracy with regard to understanding the physics of Mn perovskite compounds. Quantum Monte Carlo (QMC) and Lanczos diagonalization (LD) 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.
AB - We discuss Mott insulating and metallic phases of a model with eg orbital degeneracy with regard to understanding the physics of Mn perovskite compounds. Quantum Monte Carlo (QMC) and Lanczos diagonalization (LD) 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.
UR - http://www.scopus.com/inward/record.url?scp=0032689426&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032689426&partnerID=8YFLogxK
U2 - 10.1016/S0921-5107(99)00052-5
DO - 10.1016/S0921-5107(99)00052-5
M3 - Conference article
AN - SCOPUS:0032689426
SN - 0921-5107
VL - 63
SP - 58
EP - 64
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
IS - 1
T2 - Proceedings of the 1998 7th NEC Symposium on Fundamental Approaches to New Material Phases: Phase Control in Spin-Charge-Orbital Complex Systems
Y2 - 11 October 1998 through 15 October 1998
ER -