发明申请
- 专利标题: PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS USING THE SAME
- 专利标题(中): 全磁性记录介质及其使用的磁存储装置
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申请号: US12903135申请日: 2010-10-12
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公开(公告)号: US20120087034A1公开(公告)日: 2012-04-12
- 发明人: Akemi Hirotsune , Yotsuo Yahisa , Ichiro Tamai
- 申请人: Akemi Hirotsune , Yotsuo Yahisa , Ichiro Tamai
- 申请人地址: NL Amsterdam
- 专利权人: Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人: Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址: NL Amsterdam
- 主分类号: G11B5/82
- IPC分类号: G11B5/82 ; G11B21/02
摘要:
According to one embodiment, a perpendicular magnetic recording medium includes a soft magnetic underlayer formed above a substrate, a lower seed layer formed above the soft magnetic underlayer, at least one upper seed layer formed above the lower seed layer, an interlayer formed above the at least one upper seed layer, a perpendicular recording layer formed above the interlayer, and a protective layer formed above the perpendicular recording layer, wherein the at least one upper seed layer comprises Ni or a Ni based alloy including N, and wherein the lower seed layer includes Ni and at least one element selected from a group consisting of: W and Cr. Other embodiments are described herein regarding perpendicular magnetic recording systems and methods of producing perpendicular magnetic media.
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