Magneto-optical recording medium and method of reproducing from same

摘要

A recording layer including a recording magnetic domain for recording thereon information is formed. A reproducing layer for reproducing information by projecting thereto a light beam is formed on the recording layer. A non-magnetic intermediate layer for intercepting a magnetic exchange coupling force exerted between the recording layer and the reproducing layer is formed between the recording layer and the reproducing layer. The reproducing layer is arranged such that the width of the stable magnetic domain on the reproducing layer at room temperature is larger than the width of the recording magnetic domain in the recording layer. At a reproducing temperature by the light beam, the width of the stable magnetic domain becomes smaller than the width of the recording magnetic domain, and the information is copied by the leakage magnetic flux of the recording magnetic domain. Depending on whether or not the information transferred to the reproducing layer is reproduced, the effects from other magnetic domain adjacent to the magnetic domain to be reproduced from the reproducing layer can be prevented, thereby enabling a high density recording of information on the recording layer.