Anisotropies in ferromagnetic nanoparticles: simulation and experimental approach

被引：5

作者：

Crisan, O

Angelakeris, M

Flevaris, NK

Sobal, N

Giersig, M

机构：

[1] Natl Inst Mat Phys, R-76900 Bucharest, Romania

[2] Aristotle Univ Thessaloniki, Dept Phys, Thessaloniki 54124, Greece

[3] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2003年 / 106卷 / 1-3期

关键词：

bimetallic nanoparticles; anisotropy; Monte Carlo simulation; spin configuration;

D O I：

10.1016/S0924-4247(03)00150-X

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Magnetic behavior of the isolated ferromagnetic bimetallic nanoparticles is investigated in relation with the competition between exchange interaction and surface and bulk anisotropies. Experimental results on AgCo bimetallic nanoparticles are presented and correlated with Monte Carlo simulation of low temperature spin ordering. The nature of spin disorder at the surface, responsible for the reduction of the overall saturation magnetization is briefly discussed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：130 / 133

页数：4

共 15 条

[1]

Binder K., 1992, MONTE CARLO SIMULATI

[2]

CRISAN O, 2002, UNPUB PHYS REV B

[3]

DIMITROV DA, 1994, PHYS REV B, V50, P2925

[4] Magnetic nanoparticle array with perpendicular crystal magnetic anisotropy [J].