Monte Carlo simulation of magnetic nanoparticle systems

被引：4
|
作者：
Tran Nguyen Lan [1 ]
Tran Hoang Hai [1 ]
机构：
[1] VAST, Ho Chi Minh City Inst Phys, Ho Chi Minh City, Vietnam
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2010年 / 49卷 / 04期
关键词：
Magnetic nanoparticles; Monte Carlo simulation; Peak temperature; Poly-dispersity; Concentration; NONMONOTONIC FIELD-DEPENDENCE; BLOCKING TEMPERATURE; DIPOLAR INTERACTION; PARTICLES;
D O I：
10.1016/j.commatsci.2010.01.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We use the Monte Carlo method to study the influence of the low field on the blocking temperature of magnetic nanoparticle systems at different sample conditions, namely the poly-dispersity and the concentration. We find the increase of the blocking temperature at the low field in the dilute sample, and the slow decrease in the concentrated sample. We extract the barrier distribution to explain and compare the magnetic properties of two above samples. We also provide short discussions about the origin of the increase of the peak temperature at low field and the influence of the interaction on the blocking state of particles in the high field. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：S287 / S290
页数：4
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