| 摘要 |
<p>The magnetic recording medium comprises protrusions on a surface of a magnetic layer such that when protrusions of equal to or more than 8 nm in height as measured by AFM on the surface of the magnetic layer are divided into protrusions A formed of a spherical material and protrusions B formed of a non-spherical material, a value a, obtained by adding three times a standard deviationσof heights of protrusions A to an average value of the heights of protrusions A, a value b, obtained by adding three times a standard deviationσof heights of protrusions B to an average value of the heights of protrusions B, and a difference c, obtained by subtracting b from a, are calculated, conditions 13 nm≰a≰25 nm, 13 nm≰b≰25 nm, and 0.0 nm≰c≰10 nm are satisfied.</p> |
