| 摘要 |
PROBLEM TO BE SOLVED: To provide a substrate for a magnetic recording medium having satisfactory adhesion properties durable to flattening work such as polishing in film formation to a non-magnetic substrate and capable of thickening the film and to provide the magnetic recording medium comprising a recording layer. SOLUTION: In the substrate for the magnetic recording medium comprising a non-magnetic substrate and a base plating layer on the non-magnetic substrate, 5 to 50 pieces/100μm<SP>2</SP>protrusions having≥100 nm height exist on the surface of the base plating layer and 1 to 20 pieces/1μm<SP>2</SP>protrusions having≥10 nm height preferably exist on the surface of the base plating layer. The base plating layer is preferably formed by using one or more metals selected from the group consisting of Ag, Co, Cu, Ni and Pd or an alloy consisting essentially of the metals. COPYRIGHT: (C)2005,JPO&NCIPI
|
