Anomalous Hall effect in La1-xCaxCoO3

被引：15

作者：

Baily, SA

Salamon, MB

Kobayashi, Y

Asai, K

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[2] Univ Electrocommun, Dept Appl Phys & Chem, Tokyo, Japan

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 17期

关键词：

Semiconductor doping - Ferromagnetic materials - Glass - Spin glass - Ferromagnetism - Calcium compounds - Cobalt compounds - Temperature;

D O I：

10.1063/1.1473866

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

La1-xCaxCoO3 films show the largest anomalous Hall effect of any ferromagnetic metal. The anomalous Hall coefficient increases as x decreases. At doping below 0.2 La1-xCaxCoO3 is insulating and shows spin-glass behavior at low temperature. We have measured the Hall effect and magnetic behavior of an x=0.15 crystal. It shows cluster-glass or correlated-spin-glass behavior at intermediate temperatures. The anomalous Hall effect does not depend on the total magnetization, M, but on the ferromagnetic correlations of the glass. (C) 2002 American Institute of Physics.

引用

页码：3138 / 3140

页数：3

共 7 条

[1] Magnetotransport in manganites and the role of quantal phases: Theory and experiment [J].