Compensation temperature in spin-1/2 Ising trilayers: A Monte Carlo study

被引:21
|
作者
Diaz, I. J. L. [1 ]
Branco, N. S. [1 ]
机构
[1] Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil
关键词
Ising trilayer; Monte Carlo; Ferrimagnetism; Compensation temperature; EFFECTIVE-FIELD THEORY; MAGNETIC-PROPERTIES; ALTERNATIVE LAYERS; PHASE-DIAGRAMS; MIXED SPIN-1; THIN-FILMS; BILAYER; BEHAVIOR; MODEL; FERRIMAGNETISM;
D O I
10.1016/j.physa.2019.123014
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study the magnetic and thermodynamic properties of a spin-1/2 (sing system containing three layers, each of which is composed exclusively of one out of two possible types of atoms, A or B. The A-A and B-B bonds are ferromagnetic while the A-B bonds are antiferromagnetic. The study is performed through Monte Carlo simulations using the Wolff algorithm and the data are analyzed with the aid of the multiple-histogram reweighting technique and finite-size scaling tools. We verify the occurrence of a compensation phenomenon and obtain the compensation and critical temperatures of the model as functions of the Hamiltonian parameters. The influence of each parameter on the overall behavior of the system is discussed in detail and we present our results in the form of phase diagrams dividing the parameter space in regions where the compensation phenomenon is present or absent. Our results may provide invaluable information for experimentalists seeking to build materials with desired characteristics. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页数:12
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