Method for manufacturing a magneto-optical recording medium

摘要

A method for manufacturing a domain wall displacement (DWDD) type magneto-optical recording medium having a plurality of information tracks by:
preparing a transparent substrate (56) with a plurality of information tracks (lands 76) alternating with a plurality of regions (guide grooves 75);
laminating in sequence a first magnetic layer (reproducing layer 51), a second magnetic layer (intermediate layer 52) having a Curie temperature lower than that of the first magnetic layer and a third magnetic layer (recording layer 53) for storing information having a Curie temprature higher than that of the second magnetic layer and
annealing the regions (guide grooves 75) between the information tracks (lands 76) with a laser beam.