Perpendicular exchange bias in nickel/antiferromagnetic bilayers

被引:6
|
作者
van Dijken, S [1 ]
Crofton, M [1 ]
Coey, JMD [1 ]
机构
[1] Trinity Coll Dublin, Dept Phys, SFI Thinity Nanosci Lab, Dublin 2, Ireland
基金
爱尔兰科学基金会;
关键词
exchange bias; perpendicular anisotropy; ferromagnetism; antiferromagnetism;
D O I
10.1016/j.jmmm.2004.11.452
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A study of exchange-biased Ni films with perpendicular magnetic anisotropy is presented. Polar magneto-optic Kerr effect measurements on unbiased Si(0 0 1)/Cu/Ni/Cu films reveal high out-of-plane remanence and a loop squareness close to unity. After deposition of an antiferromagnetic layer on top of the Ni film the magnetization direction remains perpendicular to the film plane and for FeMn, IrMn, and NiMn a shift in the hysteresis loop is observed. The perpendicular exchange bias is largest for FeMn, considerably smaller for IrMn and NiMn, and zero for PtMn. All anti ferromagnetic films exhibit a (0 0 1) oriented texture. © 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:1290 / 1293
页数:4
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