发明授权
- 专利标题： Interlayer coupling field control in tunneling magnetoresistive read heads
- 专利标题（中）： 隧道磁阻读头的层间耦合场控制
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申请号： US14248970申请日： 2014-04-09
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公开(公告)号： US09099120B1公开(公告)日： 2015-08-04
- 发明人: James Mac Freitag , Zheng Gao
- 申请人： HGST Netherlands B.V.
- 申请人地址： NL Amsterdam
- 专利权人： HGST NETHERLANDS, B.V.
- 当前专利权人： HGST NETHERLANDS, B.V.
- 当前专利权人地址： NL Amsterdam
- 代理机构： Patterson & Sheridan, LLP
- 主分类号： G11B5/39
- IPC分类号： G11B5/39
摘要：
The embodiments generally relate to a read head in a magnetic recording head. The read head utilizes a sensor structure having a pinned magnetic structure with a magnetic field, a barrier layer disposed on top of the pinned magnetic structure, a free layer disposed on top of the barrier layer, and an interlayer coupling field canceling layer disposed on top of the free layer. The interlayer coupling field canceling layer has a cancelling magnetic field pinned anti-parallel the magnetic field of the pinned magnetic structure.
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