| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic recording medium and a target suitable for high density recording by improving the magnetic characteristics of a Co based magnetic layer. SOLUTION: Base layers in at least one or more layers are adhered between a non-magnetic substrate and a Co based magnetic layer in this magnetic recording medium, and at least one layer of the base layers is formed of CoTa based alloy in which Ta content is 30-65 at.% and the remainder has Co as the main component. It is preferable that the Ta amount is 45-55 at.%. The target is formed as a CoTa based alloy target being a powder sintered body in which Ta amount is 30-65 at.% and the remainder has Co as the main component, and it is preferable that no metallic Co phase exists substantially.
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