发明授权
- 专利标题: Magneto-optical recording medium
- 专利标题(中): 磁光记录介质
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申请号: US10132837申请日: 2002-04-25
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公开(公告)号: US06690625B2公开(公告)日: 2004-02-10
- 发明人: Junji Hirokane , Noboru Iwata
- 申请人: Junji Hirokane , Noboru Iwata
- 优先权: JP2001-133555 20010427
- 主分类号: G11B1100
- IPC分类号: G11B1100
摘要:
A magneto-optical recording medium is provided with at least: a recording layer, made of a perpendicular magnetization film, in which magnetized information is recorded in the form of a perpendicular direction of magnetization; a magnetic flux generating layer, made of a perpendicular magnetization film, which is exchange-coupled with the recording layer; and a read-out layer, having a perpendicular magnetization at a predetermined temperature or higher temperatures than the predetermined temperature, which copies the magnetized information of the recording layer by magneto-static coupling with the magnetic flux generating layer and the recording layer, wherein the magnetic flux generating layer is a magnetic film having a lower Curie temperature than that of the recording layer and having a larger total magnetization than that of the recording layer at a temperature at which the read-out layer has a perpendicular magnetization.
公开/授权文献
- US20020159339A1 Magneto-optical recording medium 公开/授权日:2002-10-31
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