The phase diagrams and compensation behaviors of mixed spin Blume-Capel model in a trimodal magnetic field

被引：21

作者：

Zhang, Y. F. ^{[1
]}

Yan, S. L. ^{[1
,2
,3
]}

机构：

[1] Suzhou Univ, Dept Phys, Suzhou 215006, Peoples R China

[2] Suzhou Univ, Jiangsu Key Lab Film Mat, Suzhou 215006, Peoples R China

[3] CCAST, World Lab, Beijing 100080, Peoples R China

来源：

PHYSICS LETTERS A | 2008年 / 372卷 / 15期

关键词：

phase diagram; compensation behavior; mixed spin Blume-Capel model; trimodal magnetic field;

D O I：

10.1016/j.physleta.2007.12.022

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The phase diagrams and compensation behaviors of mixed spin-1/2 and spin-1 Blume-Capel model in a trimodal magnetic field are investigated in the framework of the effective field theory on simple cubic lattice. The change of negative crystal field and trimodal concentration can affect the TCP, the second-order phase and the magnetic field degeneration at ground state in T-H space. In T-D space, the trajectory of the TCP takes on the acre curve and there exist the two TCPs under certain condition. In addition to giving one or two compensation temperature points in M-T space, the mixed spin Blume-Capel model also provides one or two novel compensation magnetic field points in M-H space. Some results are not revealed in previous works. (C) 2007 Elsevier B.V All rights reserved.

引用

页码：2696 / 2700

页数：5

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