GIANT MAGNETOTRANSPORT AND MAGNETOSTRUCTURAL PHENOMENA IN HOLE-DOPED MANGANESE OXIDES

被引：15

作者：

TOKURA, T

URUSHIBARA, A

MORITOMO, Y

ASAMITSU, A

TOMIOKA, Y

ARIMA, T

KIDO, G

机构：

[1] UNIV TOKYO, DEPT PHYS, TOKYO 113, JAPAN

[2] NATL RES INST MET, TSUKUBA, IBARAKI 305, JAPAN

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1995年 / 31卷 / 1-2期

关键词：

GIANT MAGNETOTRANSPORT; MAGNETOSTRUCTURAL PHENOMENA; MAGNETIZATION; MANGANESE OXIDES;

D O I：

10.1016/0921-5107(94)08010-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Giant magnetotransport phenomena have been investigated for single crystals of perovskite-type La1-xSrxMnO3 and related compounds. Magnetoresistance (MR) with negative sign shows a universal curve as a function of the magnetization, the body of which is quantitatively accounted for by the mean-field theory of the Kondo lattice model with strong ferromagnetic (Hund) coupling. Furthermore, magnetic field-induced structural change has been found between the two types of slightly distorted perovskite structure perhaps due to the strong coupling between the electronic and lattice degrees of freedom in these hole-doped Mn-oxides.

引用

页码：187 / 191

页数：5

共 12 条

[1] CONSIDERATIONS ON DOUBLE EXCHANGE [J].