Bethe lattice consideration of the antiferromagnetic spin-1 Ising model

被引：23

作者：

Ekiz, C ^{[1
]}

机构：

[1] Gaziosmanpasa Univ, Dept Phys, TR-60110 Tokat, Turkey

来源：

PHYSICS LETTERS A | 2004年 / 324卷 / 2-3期

关键词：

Blume-Capel model; Bethe lattice; recursion method; phase diagrams;

D O I：

10.1016/j.physleta.2004.02.057

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The antiferromagnetic Blume-Capel spin-1 Ising model in an external magnetic field is considered on the Bethe lattice. Using an iteration technique, we obtain the plots of magnetization versus temperature for different external fields and construct the resulting phase diagrams. Comparison is made between the results of this study and previous mean-field and Monte Carlo simulations. It was found that the decomposition of the tricritical point into a critical end point and a critical point appears in the phase diagram for q = 6. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：114 / 119

页数：6

共 28 条

[1] An exact formulation of the Blume-Emery-Griffiths model on a two-fold Cayley tree model [J].