Aufzeichnungsmedium für Senkrechtmagnetisierung und Verfahren zu dessen Herstellung

摘要

A perpendicular magnetic recording medium for use on a magnetic recording/reproducing apparatus which has a magnetic head for recording/reproduction includes a substrate (3), a magnetic recording layer (5) having a perpendicular magnetic anisotropy, and a soft magnetic under layer (4B-4N, 4P) interposed between the substrate and the magnetic recording layer. The soft magnetic under layer includes a mechanism for for suppressing a motion of domain walls of the soft magnetic under layer at least with respect to an external magnetic field which is smaller than a stray magnetic field in a vicinity of the magnetic head within the magnetic recording/reproducing apparatus.