Jahn-Teller distortion and electronic correlation effects in undoped manganese perovskites

被引：32

作者：

Benedetti, P ^{[1
]}

Zeyher, R ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.59.9923

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The formation of a long-range Jahn-Teller distortion in undoped manganites is studied within the dynamical mean-field theory taking both electron-phonon and electron-electron interactions into account. We find that the observed insulating behavior at temperatures above the Jahn-Teller transition and the bond-length changes below it can most naturally be explained by assuming a strong electronic repulsion and a rather weak electron-phonon coupling. [S0163-1829(99)03815-1].

引用

页码：9923 / 9928

页数：6

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