Patent ID: 7670696
Filing Date: 2010-03-02
Classification: G11B

Abstract:
1. A patterned magnetic recording medium comprising: a substrate comprising material and having a generally planar surface and a plurality of spaced-apart pillars extending generally perpendicularly from said surface, the pillars having sidewalls and ends; a recording layer having perpendicular magnetic anisotropy on the ends of the pillars, the recording layer being formed of a material comprising one or more elements selected from the group consisting of Co, Fe, Pt, Pd and Ni; nonmagnetic regions at said surface between said pillars, said nonmagnetic regions comprising a compound of at least one of said recording layer elements and at least one element from the material of said substrate; and a capping layer on said nonmagnetic regions and the sidewalls of said pillars, the capping layer being formed of a material not substantially chemically reactive with the substrate material.