Patent ID: 6086974
Filing Date: 2000-07-11
Classification: G11B,Y10S,Y10T

Abstract:
A horizontal magnetic recording medium comprising:a substrate;an etched seed layer of nonmagnetic material selected from the group consisting of Pt, Pd, Cr, CrV, SiN, NiAl(B.sub.2) alloy, FeAl(B.sub.2) alloy, and CrMn alloy, the etched seed layer being a structure of discontinuous columns of nonmagnetic seed layer material formed directly on the substrate;a granular film formed directly on the etched seed layer and comprising a first element selected from the group consisting of Pt or Pd and a second element selected from the group consisting of Co and Fe, the individual grains of the granular film comprising generally equiatomic amounts of said first element and said second element and having a substantially tetragonal crystalline structure with the main component of the C-axis and thereby the magnetization being in the plane of the film.