A method for manufacturing a magneto-optical recording medium in which
reading of recorded information is performed through domain wall
displacement in a reproduction layer is provided, in which magnetic
separation of groove side-wall portions is performed more reliably; as a
result a magneto-optical recording medium with satisfactory recording and
reproduction characteristics can be provided. The method is to
manufacture a magneto-optical recording medium in which on a substrate 1
having grooves 12 at least a reproduction layer and a recording layer,
each of which is formed of magnetic layers, are deposited and recorded
information is reproduced through domain wall displacement in the
reproduction layer; and the method includes a first annealing process in
which, after depositing at least the reproduction layer and recording
layer on the substrate 1 on which are formed lands 11 and grooves 12,
only side-wall portions 13 between adjacent lands 11 and grooves 12 are
irradiated with laser light L1, and a second magnetization annealing
process in which regions including adjacent side-wall portions 13 and
lands between side-wall portions 13 are irradiated with laser light L2
having a spot diameter greater than the spot diameter of the laser light
in the first annealing process, while applying an external magnetic field
H.sub.ex.