Magneto-elastic polarons in CMR perovskites

被引：0

作者：

Roder, H ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA

来源：

JOURNAL OF SUPERCONDUCTIVITY | 1999年 / 12卷 / 01期

关键词：

D O I：

10.1023/A:1007784828447

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this presentation I focus on the ferro- to paramagnetic transition in the manganese perovskites. I present a set of simple approximations which couple the relevant electronic degrees of freedom, the double exchange model, to local Jahn-Teller like lattice distortions. In a simplistic description, I show how this coupling controls the magnetism in the narrow band manganates, and how their critical behavior is influenced by the quasilocalization of Jahn-Teller polarons.

引用

页码：303 / 305

页数：3

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