发明申请
- 专利标题： PERPENDICULAR MAGNETIC RECORDING MEDIUM
- 专利标题（中）： 全能磁记录介质
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申请号： US12532122申请日： 2007-05-22
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公开(公告)号： US20100143750A1公开(公告)日： 2010-06-10
- 发明人: Toshio Sugimoto , Ryo Kurita , Ajan Antony
- 申请人： Toshio Sugimoto , Ryo Kurita , Ajan Antony
- 申请人地址： JP Minato-ku, Tokyo
- 专利权人： SHOWA DENKO K.K.
- 当前专利权人： SHOWA DENKO K.K.
- 当前专利权人地址： JP Minato-ku, Tokyo
- 国际申请： PCT/JP2007/000260 WO 20070522
- 主分类号： G11B5/667
- IPC分类号： G11B5/667
摘要：
A perpendicular magnetic recording medium includes: a nonmagnetic substrate; a soft magnetic backing layer formed above the nonmagnetic substrate; a nonmagnetic intermediate layer formed on the soft magnetic backing layer; and a magnetic recording layer formed on the nonmagnetic intermediate layer, the magnetic recording layer including a first ferromagnetic recording layer having perpendicular magnetic anisotropy, a coupling layer formed on the first ferromagnetic recording layer and made of Pd, Pt or alloy of Pd and Pt, and a second ferromagnetic recording layer formed on the coupling layer and having perpendicular magnetic anisotropy.
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