发明名称 Magnetooptical recording medium.
摘要 A magnetooptical recording medium has at least two recording layers (3,4) formed on a substrate (1) and having mutually different Curie temperature. The recording layer (3) having the highest Curie temperature is formed with a thickness greater than 0.5 nm but not exceeding 5 nm. The recording medium having at least two recording layers, includes an exchange-coupled multi-layered film of rare earth-iron group alloys consisting of a first recording layer of a high Curie temperature and a small vertical magnetic anisotropy, and a second recording layer (4) of a Curie temperature lower than that of the first recording layer and a vertical magnetic anisotropy larger than that of the first recording layer. <IMAGE>
申请公布号 EP0598524(A1) 申请公布日期 1994.05.25
申请号 EP19930308817 申请日期 1993.11.04
申请人 CANON KABUSHIKI KAISHA 发明人 OMATA, HIROSHI, C/O CANON KABUSHIKI KAISHA
分类号 G11B11/10;G11B11/105 主分类号 G11B11/10
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