Patent ID: 8492010
Filing Date: 2013-07-23
Classification: G11B,Y10T

Abstract:
1. A perpendicular magnetic recording disk comprising: a substrate having a surface; a first multilayer selected from Co/Pt, Co/Pd and Co/Ni multilayers on the substrate surface, an upper layer of said selected first multilayer being a layer of Pt, Pd or Ni from said selected first multilayer; a bilayer seed structure comprising a layer consisting of silicon (Si) on and in contact with said upper layer of said selected first multilayer and a layer consisting of gold (Au) on and in contact with the Si layer, the Au layer having a substantially face-centered-cubic (fcc) crystalline structure with the (111) plane generally parallel to the plane of the Au layer; and a second multilayer selected from Co/Pt, Co/Pd and Co/Ni multilayers, a lowermost layer of said selected second multilayer being a layer of Pt, Pd or Ni from said selected second multilayer and being in direct contact with the Au layer and having its [111] crystalline direction oriented substantially perpendicular to the (111) plane of the Au layer.