OPTICAL MAGNETIC RECORDING MATERIALS

摘要

A magneto-optical recording medium in which information can be overwritten by a magnetic field modulation method, is provided with a magnetic thin film satisfying an inequality t x M s < 5 mu m.emu/cc wherein the film thickness is represented by t mu m and the saturating magnetization is represented by Ms emu/cc. Even in the case where the intensity of the modulated magnetic field applied to the magneto-optical recording medium is small, a carrier to noise ratio C/N of not less than a predetermined value and a jitter of not more than a predetermined value can be realized.