Abstract: Laser light is irradiated on a multilayered magnetic thin film having a spin-glass characteristic consisting of a rare-earth metal and a conductive material, the film being heated to a predetermined temperature below the spin-glass transition temperature when recording information and heated to a temperature above the spin-glass transition temperature when erasing the information.
Type:
Grant
Filed:
November 17, 1989
Date of Patent:
July 16, 1991
Assignees:
Research Development Corp., Atsushi Maeda