Magnetic recording medium and manufacturing method thereof

Abstract

A magnetic recording medium capable of making a high-density recording, with improved magnetic characteristics such as coercive force (Hc) and other factors, in which the flatness of the surface of a magnetic recording medium is maintained, and a method for the manufacture thereof are disclosed; by disposing a non-magnetic metal buffer layer 6 between a non-magnetic glass substrate 1 and a non-magnetic metal under layer 2 and keeping a ratio d.sub.1 /d.sub.2 of the half bandwidth of an X-ray diffraction peak of the metal buffer layer 6 and the metal under layer 2 predetermined values, a large increase in coercive force (Hc) can be obtained; in addition, by controlling the film thickness .delta. of the metal buffer layer 6 and the base substance temperature (T) when the metal buffer layer 6 is formed, magnetic characteristics such as squareness (S), coercive force squareness (S*), coercive force difference (.sub..DELTA. HC) and coercive force squareness difference (.sub..DELTA. S*) can be improved.

Dependencies are inferred from the claim text.