发明名称 Magneto-optical recording medium having a recording layer of columnar structure
摘要 It is an object of the present invention to provide a magneto-optical recording medium including a recording film having at least a reproduction layer, an intermediate layer, and a recording layer, on an optical disk substrate, wherein the recording film is a magnetic film that is magnetically coupled and that has magnetic anisotropy in a direction vertical to its film surface, the recording magnetic domains formed in the recording layer are transferred to the reproduction layer, and recording information is reproduced by domain wall movement in the reproduction layer, and the recording layer has columnar structures that are oriented substantially vertically. Thus, it is possible to provide a magneto-optical recording medium with which signals below the diffraction limit of the light spot for recording and reproducing information can be reproduced at high speed, with which the recording density and the transfer speed can be significantly increased, and with which stable recording magnetic domains can be formed even if recorded at high density.
申请公布号 US7180831(B2) 申请公布日期 2007.02.20
申请号 US20040497273 申请日期 2004.11.10
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 MURAKAMI MOTOYOSHI;SAKAGUCHI TAKESHI;BIRUKAWA MASAHIRO
分类号 G11B11/00;G11B7/007;G11B11/105 主分类号 G11B11/00
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