Magnetic properties of a spin-7/2 and spin-5/2 core/shell nanowire: a Monte Carlo study

被引：0
|
作者：
N. F. Zounmenou
S. I. V. Hontinfinde
J. Kple
M. Karimou
F. Hontinfinde
机构：
[1] Université d’Abomey-Calavi,Département de Physique (FAST) et Institut des Mathématiques et de Sciences Physiques (IMSP)
[2] Ecole Nationale Supérieure de Génie Mathématique et Modélisation (ENSGMM),undefined
[3] UNSTIM,undefined
[4] Ecole Nationale Supérieure de Génie Energétique et Procédés (ENSGEP),undefined
[5] UNSTIM,undefined
来源：
Applied Physics A | 2020年 / 126卷
关键词：
Core–shell Ising nanowire; Monte carlo simulations; Phase diagrams; Hysteresis behaviors; Coercivity;
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摘要：
We have used Monte Carlo simulations based on the Metropolis algorithm to study the magnetic properties of an Ising nanowire with spin-7/2 core and spin-5/2 shell atoms in the presence of lattice anisotropy and external magnetic field. Only antiferromagnetic interfacial interactions are considered. Thermal variations of the order parameters, phase diagrams, and hysteresis behaviors of the model are calculated. The transitions encountered are of different types: first-order, second-order, compensation, and blocking transitions. It has been found that the magnetic properties of the model, in particular the critical behavior, the compensation, and the hysteresis phenomenon, exhibited are strongly affected by the competition between values of system parameters during the simulations.
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