Magneto-optical recording medium and readout method of the same

摘要

A magneto-optical recording medium includes at least a readout magnetic film and a recording magnetic film on a substrate, wherein information is recorded onto the recording magnetic film through magnetization of the recording magnetic film thereby forming domains therein, by a heating caused by irradiation of a recording light and application of a recording magnetic field, and the recorded information is read out through irradiation of a readout light thereby copying magnetization of the domains in the recording magnetic film to the readout magnetic film. The recording magnetic film is a perpendicular magnetic film in which the formed domains are retained The readout magnetic film Is a perpendicular magnetic film having a magnetic characteristic in which domains formed therein shrink The readout magnetic film contains no domains formed therein at a timing except for a readout operation to have a unidirectional magnetization.