发明授权
- 专利标题： Perpendicular recording media having an exchange-spring structure
- 专利标题（中）： 具有交换弹簧结构的垂直记录介质
-
申请号： US12691603申请日： 2010-01-21
-
公开(公告)号： US07989096B2公开(公告)日： 2011-08-02
- 发明人: Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
- 申请人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
- 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
- 代理机构： Kunzler Needham Massey & Thorpe
- 主分类号： G11B5/66
- IPC分类号： G11B5/66
摘要：
A recording medium providing improved writeability in perpendicular recording applications includes a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, an exchange-spring layer ferromagnetically exchange coupled to the magnetic recording layer and having a coercivity less than the magnetic recording layer coercivity, and a coupling layer between the magnetic recording layer and the exchange-spring layer. The coupling layer regulates the ferromagnetic exchange coupling between the magnetic recording layer and the exchange-spring layer.
公开/授权文献
信息查询
IPC分类:
