| 摘要 |
PURPOSE:To obtain a recording medium which receives a comparatively small effect of the accumulated heat, by distributing the heat diffusion layer composed of the high heat conductor and adjacent to the recording layer and then diffusing the accumulated heat to the diffusion layer. CONSTITUTION:The heat diffusion layer 2 which serves as a high heat conductor is installed on the substrate 1 formed by the plastics, and the magnetic recording layer 3 formed by the amorphous-group alloy is provided on the layer 2. Both the record write light 4 and the record read light 5 are irradiated from the upper surface of the layer 3. In such way, the heat accumulated into the layer 3 is diffused through the diffusion layer to prevent the heat from being accumulated directly into the layer 3. Thus the scale of magnetization by the heat is never lowered, thus enhancing the S/N. |
