| 摘要 |
<p>A multilayered magnetooptical recording medium capable of performing an over-write operation by an optical modulation method, comprises a substrate (1) made of plastic, an undercoating layer (2) consisting of a compound of nitrogen, oxygen, silicon, and aluminum, and formed on the substrate, and at least two perpendicular magnetizable magnetic films (3,4) stacked on the substrate, one of the magnetic films functioning as a recording layer, and another magnetic film functioning as a reference layer. Preferably, the compound (2) has a refractive index of 1.8 to 2.3. <IMAGE></p> |
