发明申请
- 专利标题: PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS
- 专利标题(中): 全磁磁记录介质和磁存储设备
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申请号: US12403215申请日: 2009-03-12
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公开(公告)号: US20090296278A1公开(公告)日: 2009-12-03
- 发明人: Ryosaku Inamura , Yuta Toyoda
- 申请人: Ryosaku Inamura , Yuta Toyoda
- 申请人地址: JP Kawasaki-shi
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 当前专利权人地址: JP Kawasaki-shi
- 优先权: JP2008-142916 20080530
- 主分类号: G11B5/82
- IPC分类号: G11B5/82 ; G11B5/66 ; G11B5/667
摘要:
A perpendicular magnetic recording medium includes a nonmagnetic seed layer, a nonmagnetic intermediate layer provided on the nonmagnetic seed layer, and a perpendicular recording layer provided on the nonmagnetic intermediate layer. The nonmagnetic seed layer includes a first seed layer made of an amorphous material, and a second seed layer provided between the first seed layer and the nonmagnetic intermediate layer and made of a material having a fcc structure. The amorphous material includes at least one element selected from a group consisting of Ta, W, Nb, Mo, Zr and alloys thereof which include at least one of Ta, W, Nb, Mo and Zr as a main component exceeding 50 at. %.
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