| 摘要 |
PROBLEM TO BE SOLVED: To obtain a magnetic recording medium suitable for short wavelength recording by providing a layered magnetic recording layer formed by stacking Co and Pt or Pd alternately to reduce transition noise remarkably in the layered magnetic recording layer. SOLUTION: This magnetic recording medium has the layered magnetic recording layer 4 consisting of the Pt layer (or Pd layer) and the Co layer and an under layer 3 of the layer 4. The layer 3 is constituted of a composite material layer comprising a composite material consisting of any of metals each having a face-centered cubic structure such as Pt, Au, Pd, Ag, Ir and Cu and any of oxides such as SiO2, Al2O3, MgO, TiO2, LiO2 CaO, ZnO, ZrO, Y2O3 and HfO (or any of nitrides such as Si3N4, AlN, BN, TiN, ZrN and GaN) (or any of carbides such as SiC, TiC, ZrC and TaC).
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