Phase diagram and magnetization of a graphene nanoisland structure

被引：31
|
作者：
Wang, Kai [1 ]
Yin, Peng [1 ]
Zhang, Yanli [2 ]
Jiang, Wei [1 ,2 ]
机构：
[1] Shenyang Univ Technol, Sch Sci, Shenyang 110870, Liaoning, Peoples R China
[2] Shenyang Univ Technol, Sch Elect Engn, Shenyang 110870, Liaoning, Peoples R China
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2018年 / 505卷
关键词：
Graphene nanoisland structure; Phase diagrams; Magnetization; Effective-field theory with correlations; MONTE-CARLO SIMULATIONS; ANTIFERROMAGNETIC ORDER; ISING-MODEL; TRANSITIONS; BILAYER; STATE; FIELD;
D O I：
10.1016/j.physa.2018.03.073
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Magnetic properties of a graphene nanoisland structure have been studied by the effective field theory with correlations. It consists of two triangular interpenetrating sublattices described by Ising model with mixed spin. The results show the exchange coupling and the anisotropy have important influence on the magnetization. The reentrant and staircase effect have been found within a certain parameter range. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：268 / 279
页数：12
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