Enhancement of exchange bias through a non-magnetic spacer

被引:32
作者
Sort, J [1 ]
Garcia, F [1 ]
Rodmacq, B [1 ]
Auffret, S [1 ]
Dieny, B [1 ]
机构
[1] CEA, SPINTEC, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble 9, France
关键词
exchange bias; perpendicular anisotropy; exchange anisotropy;
D O I
10.1016/j.jmmm.2003.12.587
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The magnitude of exchange bias, H-E, measured perpendicular to the film plane, can be significantly enhanced by inserting an ultrathin Pt spacer layer between a (Pt/Co) multilayer (ML) with perpendicular anisotropy and an antiferromagnetic (AFM) layer. A less pronounced effect is also observed when the spacer is introduced inside the AFM layer, near the FM-AFM interface. The H-E enhancement is attributed to the role of the Pt spacer in increasing the perpendicular component of the ML magnetization and, consequently, the ferromagnetic (FM)/AFM spin projection. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:355 / 356
页数:2
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