The phase diagrams of a ferromagnetic thin film in a random magnetic field

被引：10

作者：

Zaim, N. ^{[1
]}

Zaim, A. ^{[1
]}

Kerouad, M. ^{[1
]}

机构：

[1] Univ Moulay Ismail, Fac Sci, Lab Phys Mat & Modelisat Syst LP2MS, Unite Associee CNRST URAC 08, BP 11201, Zitoune, Meknes, Morocco

来源：

PHYSICS LETTERS A | 2016年 / 380卷 / 41期

关键词：

Monte Carlo simulation; Multicritical points; Thin films; Critical phenomena; ISING-MODEL; CRITICAL-BEHAVIOR; MONTE-CARLO; SURFACE; TRANSITION; CROSSOVER; EXCHANGE; SPIN-1;

D O I：

10.1016/j.physleta.2016.08.004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, the magnetic properties and the phase diagrams of a ferromagnetic thin film with a thickness N in a random magnetic field (RMF) are investigated by using the Monte Carlo simulation technique based on the Metropolis algorithm. The effects of the RMF and the surface exchange interaction on the critical behavior are studied. A variety of multicritical points such as tricritical points, isolated critical points, and triple points are obtained. It is also found that the double reentrant phenomenon can appear for appropriate values of the system parameters. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：3404 / 3413

页数：10

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