A perpendicular magnetic recording medium has a granular magnetic layer
and a nonmagnetic underlayer of a metal or an alloy having a hexagonal
close packed (hcp) crystal structure. A seed layer of a metal or an alloy
of a face-centered cubic (fcc) crystal structure is provided under the
nonmagnetic underlayer. Such a perpendicular magnetic recording medium
exhibits excellent magnetic characteristics even when the thickness of
the underlayer or the total thickness of the underlayer and the seed
layer is very thin. Excellent magnetic characteristics can be obtained
even when of the substrate is not preheated. Accordingly, a nonmagnetic
substrate, such as a plastic resin can be employed to reduce the
manufacturing cost.