Lattice effect in the metal-insulator transition in CMR manganites

被引：4
|
作者：
Louca, D [1 ]
Egami, T [1 ]
机构：
[1] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA
来源：
PHYSICA B | 1997年 / 241卷
基金：
美国国家科学基金会;
关键词：
JT distortion; lattice polarons;
D O I：
10.1016/S0921-4526(97)00734-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The atomic pair density function (PDF) of La1-xSrxMnO3 determined by pulsed neutron diffraction shows that the local structure significantly deviates from the average structure. In particular, the Jahn-Teller (JT) distortion locally persists even when the crystallographic structure shows no evidence of JT distortion. The existence of the local JT distortions is directly related to the formation of lattice polarons. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：842 / 844
页数：3
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