| 摘要 |
<p>A magnetooptical recording layer is disposed on the substrate and has a set Curie point (Tc1) and coercive force (Hc1) at room temp.. An auxiliary recording layer disposed on the magnetooptical recording layer, has a Curie point (Tc2) and coercive force (Hc2) at room temp.. A heat sink layer disposed on the side of the auxiliary recording opposite to the substrate, has a heat conductivity greater than that of the auxiliary recording layer, where Tc1, Tc2, Hc1 and Hc2 satisfy the following relation: Tc1 is less than Tc2, and Hc1 is greater than Hc2.</p> |
