Magnetic, optical recording medium - has outstanding corrosion stability and accommodates disk revolution temperature ranges

摘要

The magneto optical recording medium comprises a dielectrically coated substrate (1) and a magnetic thin film (3), which is placed on the dielectric coating (2) and has an axis for easy magnetisation running perpendicular to the substrate surface. The dielectric coating is made up of an SiO film which contains at least one element chosen from the group which comprises Lanthan, Cer, Praseodym, Neodym, Europium, Gadolinium, Dysprosium, Holmium and Niob. USE/ADVANTAGE - Avoids any tearing in dielectric film, suffers no reduction in signal-to-noise ratio through fitting of dielectric film between magnetic film and substrate.