期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 321, 期 10, 页码 1400-1403出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2009.02.047
关键词
Magnetic multi-core nanoparticle; Monte Carlo simulation; Metropolis algorithm; Magnetic dipolar interaction; Magnetic anisotropy; Magnetization
In this paper, a Monte Carlo simulation is carried out to evaluate the equilibrium magnetization of magnetic multi-core nanoparticles in a liquid and subjected to a static magnetic field. The particles contain a magnetic multi-core consisting of a cluster of magnetic single-domains of magnetite. We show that the magnetization of multi-core nanoparticles cannot be fully described by a Langevin model. Inter-domain dipolar interactions and domain magnetic anisotropy contribute to decrease the magnetization of the particles, whereas the single-domain size distribution yields an increase in magnetization. Also, we show that the interactions affect the effective magnetic moment of the multicore nanoparticles. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据