发明授权
- 专利标题: Perpendicular magnetic recording head with a laminated main write pole
- 专利标题(中): 垂直磁记录头与层叠主写柱
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申请号: US10097776申请日: 2002-03-14
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公开(公告)号: US06771464B2公开(公告)日: 2004-08-03
- 发明人: Michael K. Minor
- 申请人: Michael K. Minor
- 主分类号: G11B5147
- IPC分类号: G11B5147
摘要:
A perpendicular magnetic recording head includes a laminated main write pole and a return pole magnetically coupled to the main write pole. The main write pole includes a first magnetic layer having a high saturation magnetization, a second magnetic layer having a high saturation magnetization, and a non-magnetic interlayer positioned between the first magnetic layer and the second magnetic layer. The first and second magnetic layers may comprise, for example, FexCoy, wherein 40≦x≦90 and 10≦y≦60.
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