TRANSPORT-PROPERTIES OF THE KONDO-LATTICE MODEL IN THE LIMIT S=INFINITY AND D=INFINITY

被引：388

作者：

FURUKAWA, N

机构：

[1] Institute for Solid State Physics, University of Tokyo, Roppongi 7-22-1, Minato-ku

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1994年 / 63卷 / 09期

关键词：

TRANSITION-METAL OXIDE; TRANSPORT PROPERTIES; GIANT MAGNETORESISTANCE; KONDO LATTICE MODEL; INFINITE DIMENSIONS;

D O I：

10.1143/JPSJ.63.3214

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Kondo lattice model with Hund's ferromagnetic spin coupling is investigated as a microscopic model of the perovskite-type 3d transitionmetal oxide La1-xSrxMnO3. In the classical spin limit S = infinity and the infinite-dimensional limit D = infinity, the one-body Green's function is exactly calculated. Transport properties of the system in the presence of magnetic fields are obtained. The giant magnetoresistance of this model, which is in good agreement with the experimental data of La1-xSrxMnO3, is explained by the spin-disorder scattering process.

引用

页码：3214 / 3217

页数：4

共 11 条

[1] THERMODYNAMICS AND CORRELATION-FUNCTIONS OF THE FALICOV-KIMBALL MODEL IN LARGE DIMENSIONS [J].