Potts Model on the Bethe Lattice with Nonmagnetic Impurities in An External Magnetic Field

被引：2

作者：

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

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

Gusev, E. G. ^{[1
]}

机构：

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

来源：

THEORETICAL AND MATHEMATICAL PHYSICS | 2018年 / 197卷 / 02期

关键词：

diluted magnet; Potts model; Bethe lattice; phase transition; APPROXIMATION;

D O I：

10.1134/S0040577918110089

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We obtain a solution for the Potts model on the Bethe lattice in an external magnetic field with movable nonmagnetic impurities. Using the method of pseudochaotic impurity distribution (correlations in the positions of the impurity atoms for the neighboring sides vanish), we obtain a system of equations defining the first-order phase transition curve on the temperature-external field plane. We find the dependence of the endpoint of the phase transition line on the concentration of magnetic atoms.

引用

页码：1645 / 1649

页数：5

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