Monte Carlo Study of Magnetic and Thermal Phase Transitions of a Diluted Magnetic Nanosystem

被引：13

作者：

Sahdane, T. ^{[1
]}

Mhirech, A. ^{[2
]}

Bahmad, L. ^{[2
]}

Kabouchi, B. ^{[1
]}

机构：

[1] Mohammed V Univ Rabat, Fac Sci, Mol Spectron Opt & Laser Instrumentat Team, LaMCScI, POB 1014, Rabat, Morocco

[2] Mohammed V Univ Rabat, Fac Sci, Lab Magnetism & High Energy Phys LMPHE PPR 13, POB 1014, Rabat, Morocco

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2018年 / 31卷 / 04期

关键词：

Monte Carlo simulation; Magnetic properties; Thermal phase transitions; Compensation temperature; Critical temperature; Diluted system; ISING-MODEL; NANOPARTICLES; CO;

D O I：

10.1007/s10948-017-4292-1

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Monte Carlo (MC) simulation method with the Metropolis algorithm is used to study the magnetic and thermal phase transition properties of a spherical nanoparticle. The system consists of two concentric spheres of rays R (C) and R (S), respectively (R (c) < R (s)). For r < R (c), the spin is sigma = +/- 3 /2 and +/- 1 /2, and for R (C) < r ae<currency> R (S), the spin is S = +/- 7 /2, + 5/2, +/- 3 /2, and +/- 1 /2 with antiferromagnetic interface coupling. Between R (C) and R (S), the sites are populated with the probability (p). We present a detailed discussion on the magnetic and thermal phase transition characteristics of the system under consideration. Our investigations show that this system can be used as a magnetic nanostructure possessing potential applications in magnetism.

引用

页码：1089 / 1093

页数：5

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