发明授权
US06927952B2 CPP GMR free layer having ferromagnetic layers with parallel magnetization separated by non-magnetic layer
失效
具有由非磁性层分离的具有平行磁化的铁磁层的CPP GMR自由层
- 专利标题： CPP GMR free layer having ferromagnetic layers with parallel magnetization separated by non-magnetic layer
- 专利标题（中）： 具有由非磁性层分离的具有平行磁化的铁磁层的CPP GMR自由层
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申请号： US10114767申请日： 2002-04-03
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公开(公告)号： US06927952B2公开(公告)日： 2005-08-09
- 发明人: Yutaka Shimizu , Hirotaka Oshima , Keiichi Nagasaka , Yoshihiko Seyama , Atsushi Tanaka
- 申请人： Yutaka Shimizu , Hirotaka Oshima , Keiichi Nagasaka , Yoshihiko Seyama , Atsushi Tanaka
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Greer, Burns & Crain, LTD
- 优先权： JP2001-345651 20011112
- 主分类号： G11B5/00
- IPC分类号： G11B5/00 ; G11B5/012 ; G11B5/39 ; H01L43/08
摘要：
A magnetoresistive device includes a laminated film, and a mechanism for applying sense current in a direction of lamination in the laminated film, wherein the laminated film includes a first ferromagnetic layer having a substantially fixed direction of magnetization, a second ferromagnetic layer having a freely variable direction of magnetization according to an external magnetic field, the second ferromagnetic layer including a non-magnetic metal layer, and two or more ferromagnetic metal layers separated from each other by the non-magnetic metal layer in the direction of lamination, and a non-magnetic intermediate layer that separates the first and second ferromagnetic layer from each other.
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