A multiple layer structure comprising a pair of spaced-apart crystalline
layers of different materials with an intermediate crystalline layer
between and in contact with each of the pair of crystalline layers, the
intermediate crystalline layer providing one of the crystalline layers of
the pair with a stronger out-of-plane preferred growth orientation than
if each of the pair of crystalline layers are in overlying contact.
Disclosed and preferred embodiments include perpendicular magnetic
recording media comprising the multiple layer structure as an
intermediate layer structure beneath a perpendicular magnetic recording
layer for strengthening a preferred out-of-plane growth orientation of
the latter.