发明授权
- 专利标题: Magnetic recording head with layered structure in write gap
- 专利标题(中): 具有写入间隙的分层结构的磁记录头
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申请号: US12389652申请日: 2009-02-20
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公开(公告)号: US08289648B2公开(公告)日: 2012-10-16
- 发明人: Mark Thomas Kief , Sharat Batra , Inturi Venkateswara Rao
- 申请人: Mark Thomas Kief , Sharat Batra , Inturi Venkateswara Rao
- 申请人地址: US CA Cupertino
- 专利权人: Seagate Technology LLC
- 当前专利权人: Seagate Technology LLC
- 当前专利权人地址: US CA Cupertino
- 代理机构: Westman, Champlin & Kelly, P.A.
- 主分类号: G11B5/127
- IPC分类号: G11B5/127
摘要:
The present disclosure provides a magnetic recording head for a data storage system having improved write field characteristics. In one example, an apparatus having magnetic properties is provided. The apparatus includes a pole, a shield, and a multilayer block positioned between the pole and the shield. The multilayer block includes a plurality of layers wherein at least one of the plurality of layers comprises a magnetic material. In one embodiment, the multilayer block provides an antiferromagnetic coupling between the pole and the shield such that a magnetization of the pole is in a first direction and a magnetization of the shield in a second direction that is substantially anti-parallel to the first direction.
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