Exchange bias in ferromagnetic nanoparticles on antiferromagnetic films

被引：5
|
作者：
Yamamoto, Y. [1 ]
Nakagawa, H. [1 ]
Hori, H. [1 ]
机构：
[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, Nomi, Ishikawa 9231292, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期
关键词：
magnetic nanoparticles; exchange bias system; FePt; superparamagnetism; blocking temperature;
D O I：
10.1016/j.jmmm.2006.10.743
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic properties were investigated for single layer films of closely packed FePt nanoparticles fabricated on nonmagnetic Si substrate and antiferromagnetic CoO films. Temperature dependence of magnetization study showed the enhancement of blocking temperature only for the case of the sample having the interface between ferromagnetic and antiferromagnetic materials. This result suggests that the exchange bias enhanced the anisotropy of nanoparticles. (c) 2006 Elsevier B. V. All rights reserved.
引用
收藏
页码：2384 / 2386
页数：3
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