发明授权
- 专利标题： Magneto-optical recording medium and manufacturing method thereof
- 专利标题（中）： 磁光记录介质及其制造方法
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申请号： US207054申请日： 1994-03-08
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公开(公告)号： US5498485A公开(公告)日： 1996-03-12
- 发明人: Junichiro Nakayama , Hiroyuki Katayama , Junji Hirokane , Michinobu Mieda
- 申请人： Junichiro Nakayama , Hiroyuki Katayama , Junji Hirokane , Michinobu Mieda
- 申请人地址： JPX Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX4-008498 19920121
- 主分类号： G11B11/105
- IPC分类号： G11B11/105 ; G11B5/66 ; G11B11/00
摘要：
A magneto-optical recording medium has a recording layer including two magnetic layers. The magneto-optical recording medium satisfies a condition of .vertline.A.sub.1.K.sub.1 -A.sub.2.K.sub.2 .vertline..ltoreq.0.18 (erg.sup.2 /cm.sup.4) wherein A.sub.1, K.sub.1, A.sub.2, and K.sub.2 respectively represent an exchange constant of a first magnetic layer, a perpendicular magnetic anisotropy of the first magnetic layer, an exchange constant of a second magnetic layer, and a perpendicular magnetic anisotropy of the second magnetic layer. First and Second magnetic layers are made of TbFeCo.
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