| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic recording medium which is capable of improving thermal fluctuation characteristics without deteriorating output characteristics, noise characteristics, etc. SOLUTION: A nonmagnetic substrate 1 is provided thereon with an orientation control film 3, a perpendicular magnetic film 4 and a protective film 5 and the orientation control film 3 contains Hf andΔθ50 of the orientation control film 3 is smaller thanΔθ50 of the perpendicular magnetic film 4 and is specified to a range from 2 to 15 deg.; in addition, the reverse magnetic domain forming magnetic field of the perpendicular magnetic film 4 is specified to 0 to 2,500 (Oe).
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