发明授权
- 专利标题： Multilayer films for optimized soft underlayer magnetic properties of dual layer perpendicular recording media
- 专利标题（中）： 用于优化双层垂直记录介质的软底层磁性能的多层膜
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申请号： US10116577申请日： 2002-04-04
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公开(公告)号： US06777113B2公开(公告)日： 2004-08-17
- 发明人: Isabel G. Trindade , Sharat Batra , Dieter K. Weller , Yukiko Kubota , Kurt W. Wierman , James K. Howard , Ganping Ju
- 申请人： Isabel G. Trindade , Sharat Batra , Dieter K. Weller , Yukiko Kubota , Kurt W. Wierman , James K. Howard , Ganping Ju
- 主分类号： G11B5667
- IPC分类号： G11B5667
摘要：
A perpendicular magnetic recording medium includes a hard magnetic recording layer and a soft magnetic underlayer adjacent the hard magnetic recording layer. The soft magnetic underlayer includes first and second ferromagnetically coupled multilayer structures and a coupling layer positioned between the first and second multilayer structures for antiferromagnetically coupling the first and second multilayer structures. A magnetic disc drive storage system incorporating such a perpendicular magnetic recording medium and a method of making such a perpendicular magnetic recording medium are also included.
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