| 摘要 |
A magneto-optic recording medium of the present invention has a transparent substrate. A reproducing layer is stacked on the substrate, and remains in an in-plane magnetic state at room temperature and is transformed into a perpendicular magnetic state at an increased temperature. A first recording layer for storing information therein is stacked on the reproducing layer. In the first recording layer, the perpendicular magnetic state is maintained in a temperature range of from room temperature to the Curie temperature. A second recording layer for storing information therein is stacked on the first recording layer. In the second recording layer, the perpendicular magnetic state is maintained in a temperature range of from room temperature to the Curie temperature. The sub-lattice magnetic moment of an element forming the second recording layer is oriented in the direction opposite to the magnetic moment of the first recording layer. A same type of elements being used for the first and second recording layers. The rotation of the plane of polarization of incident light generated in the reproducing layer at a magnetic wall domain is canceled by the rotation angles of the planes of polarization of the incident light generated in the first and second recording layers.
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