Exchange-spring behavior of hard/soft magnetic multilayers: optimization study of the nanostructure

被引：8
作者：
Amato, M
Rettori, A
Pini, MG
机构：
[1] Consiglio Nazl Ricerche, Ist Elettron Quantist, I-50127 Florence, Italy
[2] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy
[3] Ist Nazl Fis Mat, Unita Firenze, I-50125 Florence, Italy
来源：
PHYSICA B | 2000年 / 275卷 / 1-3期
关键词：
magnetic multilayers; exchange-spring magnets; permanent magnets;
D O I：
10.1016/S0921-4526(99)00726-7
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We investigate the magnetization reversal process in two-phase hard/soft (h/s) magnetic multilayers with exchange-spring behavior using a mean-field approach to determine the equilibrium configuration. Starting from a trilayer made of 50h/100s/50h layers, we separately consider the effect of increasing nanostructuration (while maintaining constant the overall h/s ratio) and decreasing the thickness of the hard phase (while keeping constant that of the soft phase) on the maximum energy product (BH)(max). In this way, the optimal composition for the multilayer exchange-spring magnet can be determined. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：120 / 123
页数：4
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