PHOTOMAGNETIC RECORDING MEDIUM

摘要

PURPOSE: To attain high-density recording by laminating at least one layer each of a first magnetic layer and second magnetic layer consisting of rare earth-transition metal amorphous films on a substrate and increasing the intensity of the magnetic anisotropy in the direction perpendicular to the film plane. CONSTITUTION: This magneto-optical recording medium is formed by laminating at least one layer each of the first magnetic layer 1 and second magnetic layer 2 consisting of the rare earthtransition metal amorphous films on the substrate 3. The magnetic layer 1 is the one element selected from an element group consisting of Nd and Pr. The magnetic layer 2 contains only one element selected from an element group consisting of Tb and Dyb. The magnetic layer 1 has a high magneto-optical effect at a short wavelength and small perpendicular magnetic anisotropy. The magnetic layer is conversely small in the magnet optical effect and large in the perpendicular magnetic anisotropy. When the magnetic layers 1, 2 are laminated, the magnetic interlayer bonding effect generated between the two layers is exerted on the magnetic layer 1. The medium of the perpendicularly magnetized films having the high magneto-optical effect even at a short wavelength over the entire part of the laminated layers is then obtd. and high-density recording is made possible.