| 摘要 |
PURPOSE:To obtain a vertical magnetic recording medium which has excellent vertical magnetic anisotropy without depending on the material of a substrate and has improved durability by forming a vertically magnetized film on a nonmagnetic cobalt alloy film. CONSTITUTION:A nonmagnetic Co alloy consisting of Co incorporated therein with >=45wt% Ta, etc. is formed as an underlying film 5, to >=0.2mu thickness on a substrate 1 such as glass, alumina or the like. A vertically magnetized film 3 of Co-Cr, etc. is then formed on the film 5 to >=0.2mu thickness. The excellent vertically magnetized film is obtd. by the film 5 irrespectively of the material of the substrate 1 and a magnetic recording medium havint high adhesion force among the substrate 1, the film 5 and the film 3 without giving rise to peeling, etc. and having good durability is obtd. |
