| 摘要 |
PURPOSE:To improve the vertical orientation of a magnetic recording body and to suppress the generation of cracking and curling by forming an Al alloy layer as an underlying layer adjacent to a vertical magnetic recording film consisting of a Co alloy. CONSTITUTION:The underlying layer and the vertical magnetic recording film consisting of the Co alloy are formed on a substrate. The alloy layer composed of >=1 kinds among Cr, Ti, Ta, Zr, Nb, Mg, Mn, Ni, Si, and Cu and Al is used as the underlying layer. The vertical orientation of the vertical magnetic recording medium is improved according to the above-mentioned constitution. The underlying layer has ductility to reinforce a base film and is capable of suppressing the generation of cracking and curling of the vertical magnetic recording medium.
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