A Monte Carlo study of the spin-1 Blume-Emery-Griffiths phase diagrams within biquadratic exchange anisotropy

被引：18

作者：

Dani, Ibtissam ^{[1
]}

Tahiri, Najim ^{[1
]}

Ez-Zahraouy, Hamid ^{[1
]}

Benyoussef, Abdelilah ^{[1
]}

机构：

[1] Univ Mohammed, Lab Magnetism & High Energy Phys URAC 12, Dept Phys, Fac Sci, Rabat, Morocco

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2014年 / 407卷

关键词：

Blume-Emery-Griffiths; Ferrimagnetisms; Tricritical behavior; Mean-field theory; Monte Carlo simulation; SPACE RENORMALIZATION-GROUP; MODEL THIN-FILMS; ISING-MODEL; LAYERING TRANSITIONS; TRICRITICAL POINTS; DIMENSIONS; CAPEL MODEL; FIELD; SEPARATION; MIXTURES;

D O I：

10.1016/j.physa.2014.04.006

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of the bi-quadratic exchange coupling anisotropy on the phase diagram of the spin-1 Blume-Emery-Griffiths model on simple-cubic lattice is investigated using mean field theory (MFT) and Monte Carlo simulation (MC). It is found that the anisotropy of the bi-quadratic coupling favors the stability of the ferromagnetic phase. By decreasing the parallel and/or perpendicular bi-quadratic coupling, the ferrimagnetic and the antiquadrupolar phases broaden in contrast, the ferromagnetic and the disordered phases become narrow. The behavior of magnetization and quadrupolar moment as a function of temperature is also computed, especially in the ferrimagnetic phase. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：295 / 302

页数：8

共 26 条

[1] Global Bethe lattice consideration of the spin-1 Ising model
Akheyan, AZ
Ananikian, NS
[J]. JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1996, 29 (04): : 721 - 731
[2] Arora B.L., 1973, AIP C P, V10, P870
[3] Edge wetting of an Ising three-dimensional system
Bahmad, L
Benyoussef, A
Ez-Zahraouy, H
[J]. PHYSICAL REVIEW E, 2002, 66 (05): : 6 - 056117
[4] Wetting of a corrugated surface 3D Ising model
Bahmad, L
Benyoussef, A
Ez-Zahraouy, H
[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2002, 303 (3-4) : 525 - 533
[5] BENYOUSSEF A, 1994, J PHYS I, V4, P393, DOI 10.1051/jp1:1994146
[6] LAYERING TRANSITIONS IN ISING-MODEL THIN-FILMS - A REAL-SPACE RENORMALIZATION-GROUP ANALYSIS
BENYOUSSEF, A
EZZAHRAOUY, H
[J]. PHYSICA A, 1994, 206 (1-2): : 196 - 206
[7] BLUME-EMERY-GRIFFITHS-POTTS MODEL IN 2 DIMENSIONS - PHASE-DIAGRAM AND CRITICAL PROPERTIES FROM A POSITION-SPACE RENORMALIZATION GROUP
BERKER, AN
WORTIS, M
[J]. PHYSICAL REVIEW B, 1976, 14 (11) : 4946 - 4963
[8] THEORY OF FIRST-ORDER MAGNETIC PHASE CHANGE IN UO2
BLUME, M
[J]. PHYSICAL REVIEW, 1966, 141 (02): : 517 - &
[9] ISING MODEL FOR LAMBDA TRANSITION AND PHASE SEPARATION IN HE-3-HE-4 MIXTURES
BLUME, M
EMERGY, VJ
GRIFFITHS, RB
[J]. PHYSICAL REVIEW A-GENERAL PHYSICS, 1971, 4 (03): : 1071 - +
[10] APPLICATION OF KADANOFFS LOWER-BOUND RENORMALIZATION TRANSFORMATION TO BLUME-CAPEL MODEL
BURKHARDT, TW
[J]. PHYSICAL REVIEW B, 1976, 14 (03): : 1196 - 1201

← 1 2 3 →