Phase diagrams and tricritical behavior in a spin-2 transverse Ising model with a crystal field on honeycomb lattice

被引：10
|
作者：
Jiang, W
Wei, GZ
Xin, ZH
机构：
[1] Northeastern Univ, Coll Sci, Shenyang 110006, Peoples R China
[2] Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
[3] China Criminal Police Coll, Dept Basic Course, Shenyang 110035, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 220卷 / 01期
关键词：
Ising model; phase transition; tricritical behavior; transverse field; crystal field;
D O I：
10.1016/S0304-8853(00)00446-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Within the effective-field theory with correlations, general expressions for evaluating the second-order phase transition line and tricritical point of the spin-2 transverse Ising model with the presence of a crystal field are obtained, The phase diagrams and the behavior of the tricritical point are studied numerically for the honeycomb lattice (z = 3). (C) 2000 Elsevier Science B.V. All rights reserved.
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页码：96 / 100
页数：5
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