Invention Application
WO2003046905A1 光磁気記録媒体及びその製造方法 审中-公开
磁光记录介质及其制造方法

光磁気記録媒体及びその製造方法
Abstract:
A magneto-optical recording medium including a recording film (10) having a reproduction layer (13), an intermediate layer (14), and a recording layer (15) on an optical disc substrate. The recording film (10) is a magnetic film magnetically connected and having magnetic anisotropy in the direction vertical to the film surface. A recording magnetic domain formed on the recording layer (15) is transferred onto the reproduction layer (13). Recording information is reproduced by movement of the magnetic domain wall. The recording layer (15) has a columnar structure orientated substantially in the vertical direction. Thus, it becomes possible to perform a high-speed reproduction of a signal below the diffraction limit of the light spot for recording/reproducing the information and significantly improve the recording density and the transfer speed. Even when recorded at a high density, it is possible to form a stable recording magnetic domain.
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