The static and dynamic lattice effects in La1-xCaxMnO3

被引：26

作者：

Dai, P

Zhang, JD

Mook, HA

Foong, F

Liou, SH

Dowben, PA

Plummer, EW

机构：

[1] UNIV TENNESSEE, DEPT PHYS, KNOXVILLE, TN 37996 USA

[2] UNIV NEBRASKA, DEPT PHYS, LINCOLN, NE 68588 USA

来源：

SOLID STATE COMMUNICATIONS | 1996年 / 100卷 / 12期

基金：

美国国家科学基金会;

关键词：

magnetically ordered materials; electron-phonon interactions; neutron scattering;

D O I：

10.1016/S0038-1098(96)00536-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The structural and magnetic behavior of the perovskite insulator La0.9Ca0.1MnO3 were studied as a function of temperature from 15 to 300 K by neutron powder diffraction. Although this compound shows an anomalous response of the lattice parameters around T-c (150 K), the behavior of the oxygen/manganese Debye-Waller factors is in clear contrast to its ''colossal magnetoresistance'' (CMR) counterpart La0.65Ca0.35MnO3 We speculate that the difference is intimately associated with the metal-insulator transition in the latter compound. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：865 / 869

页数：5

共 25 条

[1] CONSIDERATIONS ON DOUBLE EXCHANGE [J].