发明授权

  • 专利标题: Magneto optical recording medium capable of preventing a reproduction layer from having a degraded characteristic
  • 专利标题(中): 能够防止再现层具有劣化特性的磁光记录介质
  • 申请号: US09669454
    申请日: 2000-09-25
  • 公开(公告)号: US06590836B1
    公开(公告)日: 2003-07-08
  • 发明人: Atsushi YamaguchiHitoshi NoguchiHiroki Ishida
  • 申请人: Atsushi YamaguchiHitoshi NoguchiHiroki Ishida
  • 优先权: JP11-277065 19990929
  • 主分类号: G11B1100
  • IPC分类号: G11B1100
Magneto optical recording medium capable of preventing a reproduction layer from having a degraded characteristic
摘要:
On a dielectric layer of SiN a reproduction layer, a non-magnetic layer of SiN and a recording layer of TbFeCo are formed to provide a magneto optical recording medium. The reproduction layer is formed of a first layer corresponding to a Gd layer, a second layer formed of GdFeCo and a third layer corresponding to a Gd layer. As such, the magneto optical recording medium, with the non-magnetic layer formed in contact with the reproduction layer, can prevent the non-magnetic layer from affecting the reproduction layer and thus prevent the reproduction layer from having a degraded characteristic.
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