发明申请
US20090296278A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS 有权
全磁磁记录介质和磁存储设备

  • 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
  • 申请号: US12403215
    申请日: 2009-03-12
  • 公开(公告)号: US20090296278A1
    公开(公告)日: 2009-12-03
  • 发明人: Ryosaku InamuraYuta Toyoda
  • 申请人: Ryosaku InamuraYuta 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
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS
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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