Bethe approximation in the Ising model with mobile impurities

被引：8

作者：

Semkin, S. V. ^{[1
]}

Smagin, V. P. ^{[1
]}

机构：

[1] Vladivostok State Univ Econ & Serv, Vladivostok 690014, Russia

来源：

PHYSICS OF THE SOLID STATE | 2015年 / 57卷 / 05期

关键词：

FIELD THEORY; TRANSFORMATION; FERROMAGNET;

D O I：

10.1134/S106378341505025X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Bethe approximation as applied to a system consisting of magnetic and nonmagnetic atoms in the thermodynamic equilibrium has been considered. In this approximation, the dependences of the magnetization and Curie temperature on the concentration of magnetic atoms for the Ising model with mobile nonmagnetic impurities have been constructed and the limiting concentrations of the appearance of spontaneous magnetization in the ground state have been obtained. It has been established that the considered approximation for a one-dimensional chain is the exact solution.

引用

页码：943 / 948

页数：6

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