Ground states of the frustrated Blume-Emery-Griffiths model in a field

被引：5
|
作者：
Zukovic, M. [1 ]
机构：
[1] Safarik Univ, Fac Sci, Dept Theoret Phys & Astrophys, Kosice 04154, Slovakia
来源：
PHYSICS LETTERS A | 2012年 / 376卷 / 47-48期
关键词：
Blume-Emery-Griffiths model; Triangular lattice; Geometrical frustration; Monte Carlo simulation; Ground state; Magnetization plateau; ANTIFERROMAGNETIC ISING-MODEL; GENERAL SPIN-S; TRIANGULAR LATTICE; PHASE-DIAGRAM; RENORMALIZATION-GROUP; BETHE LATTICE; SYSTEMS; TRANSITIONS; DIMENSIONS;
D O I：
10.1016/j.physleta.2012.10.032
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Ground-state properties of the Blume-Emery-Griffiths model with antiferromagnetic nearest-neighbor interactions on a triangular lattice are investigated in the presence of an external magnetic field. In particular, we explore the model's parameter space and identify regions with different degenerate ground states that may give rise to different magnetic phases also at finite temperatures. We demonstrate the presence of such phases by Monte Carlo simulations of magnetization processes for selected values of parameters. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：3649 / 3653
页数：5
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