| 摘要 |
<p>A magnetooptic recording medium comprising a recording layer (5), an intermediate layer (4) and a reproducing layer (3). The reproducing layer (3) is formed from a rear-earth metal-dominant rear-earth transition metal alloy, and the intermediate layer (4) and the recording layer (5) are formed from a transition metal-dominant rear-earth transition metal alloy. The intermediate layer (4), providing an in-plane magnetization at at least 140?C, shields bonding with exchange interaction between the recording layer (5) and the reproducing layer (3) at reproducing. An electrostatic repulsion between the magnetic domain of the intermediate layer (4) and that of the reproducing layer (5) expands a magnetic domain (3A) transferred onto the reproducing layer (3) up to the size of a minimum magnetic domain diameter. The reproduction of an expanded magnetic domain will provide a reproduction signal with an amplified intensity without the occurrence of a ghost signal.</p> |
