Magnetic properties of a mixed spin-(5/2,2) Ising core/shell nanoparticle: Monte Carlo study

被引：28
作者：
Feraoun, A. [1 ]
Amraoui, S. [1 ]
Kerouad, M. [1 ]
机构：
[1] Univ Moulay Ismail, LP2MS, Unite Associee CNRST URAC 08, Fac Sci, BP 11201, Zitoune, Meknes, Morocco
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2019年 / 526卷
关键词：
Nanoparticle; Monte Carlo method; Blocking temperature; Compensation behavior; Hysteresis loops; THERMODYNAMIC PROPERTIES; THIN-FILMS; TRANSITION; MOSSBAUER; NANOWIRE; TEMPERATURE; NANOISLAND; RESONANCE; MODEL;
D O I：
10.1016/j.physa.2019.04.160
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Using the Monte Carlo method, we have studied the effect of the Hamiltonian parameters (the exchange couplings, the crystal and the magnetic fields) on the magnetizations, the phase diagrams and the hysteresis behavior of a hexagonal ferromagnetic or ferrimagnetic Ising core/shell nanoparticle with mixed spin-5/2 and spin-2. Interesting phenomena have been shown. In particular, the system exhibits the first order transition, the compensation temperature and the compensation crystal field. In addition, the nanoparticle presents single, double, triple and quintuple hysteresis loops. (C) 2019 Elsevier B.V. All rights reserved.
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页数：9
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