Perpendicular magnetic anisotropy in nanocomposite Nd-Fe-B/FeCo bilayer films

被引：2
作者：
Ao, Q [1 ]
Zhang, WL [1 ]
Wu, JS [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Mat Sci & Engn, Key Lab State Educ Minist High Temperature Mat &, Shanghai 200030, Peoples R China
来源：
SCRIPTA MATERIALIA | 2005年 / 52卷 / 12期
基金：
上海市自然科学基金; 中国国家自然科学基金;
关键词：
perpendicular magnetic anisotropy; nanocomposite Nd-Fe-B/FeCo bilayer films; exchange coupling; sputtering;
D O I：
10.1016/j.scriptamat.2005.02.030
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nd-Fe-B/FeCo bilayer films with Mo underlayers and overlayers have been investigated. All the samples have perpendicular anisotropy and the magnetization is found to increase with increasing FeCo layer thickness (d(FeCo)) and the coercivity decreases with increasing d(FeCo). The maximum energy-product is 20 MGOe for d(FeCo) = 5 nm. The enhancement of the remanence and energy products in the bilayer films is attributed to the exchange coupling between the magnetically soft and hard phases. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1247 / 1251
页数：5
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