Invention Grant
- Patent Title: Exchange coupling film magnetoresistance effect device magnetoresistance effective head and method for producing magnetoresistance effect device
- Patent Title (中): 交换耦合膜磁阻效应器件磁阻有效磁头及其制造方法
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Application No.: US09236711Application Date: 1999-01-25
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Publication No.: US06245450B1Publication Date: 2001-06-12
- Inventor: Yasuhiro Kawawake , Hiroshi Sakakima , Mitsuo Satomi , Yasunari Sugita
- Applicant: Yasuhiro Kawawake , Hiroshi Sakakima , Mitsuo Satomi , Yasunari Sugita
- Priority: JP9-314940 19971117; JP9-352614 19971222; JP10-006681 19980116
- Main IPC: G11B566
- IPC: G11B566
Abstract:
An exchange coupling film of the present invention includes a substrate and a multilayer film. The multilayer film includes: a ferromagnetic layer and a magnetization rotation suppressing layer provided adjacent to the ferromagnetic layer for suppressing a magnetization rotation of the ferromagnetic layer; and the magnetization rotation suppressing layer includes an Fe—M—O layer (where M=Al, Ti, Co, Mn, Cr, Ni or V).
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