Patent ID: 8634155
Filing Date: 2014-01-21
Classification: B82Y,G11B

Abstract:
1. A thermally assisted magnetic recording disk, comprising: a substrate; on at least one surface of the substrate, a magnetic recording layer in which a plurality of magnetic recording regions in the form of tracks for conducting read/write of magnetic information and a plurality of non-recording regions for magnetically separating the magnetic recording regions are regularly disposed in an in-plane direction of the substrate; and in the non-recording regions, one or more kinds of elements of B, P, Si, F, C, In, Bi, Kr, Ar, Xe, W, As, Ge, Mo, Sn, N wherein said magnetic recording regions are structured and made of materials such that a thermally assisted recording method is effective to record, wherein one or more kinds of elements of B, P, Si, F, C, In, Bi, Kr, Ar, Xe, W, As, Ge, Mo, Sn, N wherein the coercive force (Hc) in the non-magnetic regions is less than 1000 Oe at temperatures between room temperature and 250° C.