Magneto-optical recording medium, method of recording and reproducing information in and from said magneto-optical recording medium and method of producing said mageto-optical recording medium

摘要

A magneto-optical recording medium according to the present invention comprises a recording layer in which information is to be recorded; and a reproducing layer to and from which information recorded in the recording layer is to be transferred and read out. The magneto- optical recording medium is arranged such that, at room temperature, the width of a stable magnetic domain of the reproducing layer is wider than the width of the recorded magnetic domain formed in the recording layer at the time when information has been recorded therein, and that, at temperature exceeding a predetermined value, the relationship between these widths is reversed. Accordingly, upon irradiation of a light beam, there is transferred and reproduced, to and from the reproducing layer, the magnetic domain of only that portion of the recording layer corresponding to the center portion of the light beam where the temperature of the reproducing layer exceeds the predetermined value. It is therefore possible to provide a magneto-optical recording medium in which information can be recorded with high density and which is suitable for recording image information or the like for which a large recording capacity is required.