Magneto-optical recording medium having amorphous artificially layered structure of rare earth element and transition metal element

摘要

A magneto-optical recording medium is disclosed. The medium comprises a substrate and a magnetic layer formed thereon. The magnetic layer has a multi layered structure in which rare earth metal element layers and transition metal layers are alternately superposed with each other, with layer thickness of the order of an atomic layer. The layer thickness of the rare earth metal element is selected not less than 2 ANGSTROM but less than 6 ANGSTROM .