Exchange-spring behavior in sputter-deposited alpha-Fe/Nd-Fe-B multilayer magnets

被引:32
作者
Shindo, M [1 ]
Ishizone, M [1 ]
Kato, H [1 ]
Miyazaki, T [1 ]
Sakuma, A [1 ]
机构
[1] HITACHI MET LTD,MAGNET & ELECT MAT RES LAB,KUMAGAYA 360,JAPAN
关键词
Nanocomposite magnet; Nd2Fe14B; alpha-Fe; thin film; exchange-coupling;
D O I
10.1016/S0304-8853(96)00458-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Thin films of Nd-Fe-B and alpha-Fe/Nd-Fe-B multilayer with Ti both for underlayers and overlayers were fabricated on glass substrates by means of RF sputtering. After annealing at 873-973 K for 30 min, both Nd-Fe-B films and alpha-Fe/Nd-Fe-B multilayer films have shown relatively large coercive fields and the minor loops of the alpha-Fe/Nd-Fe-B multilayer films an reversible in a certain range of demagnetization fields. These results indicate that the layers of alpha-Fe and Nd2Fe14B phases are exchange coupled.
引用
收藏
页码:L1 / L5
页数:5
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