A perpendicular magnetic recording medium having a substrate, a Cr-doped Fe-alloy-containing underlayer containing about 8 to 18 at % Cr and a perpendicular recording magnetic layer, and a process for improving corrosion resistance of the recording medium and for manufacturing the recording medium are disclosed.
R. Thangaraj, M. Munteanu, E. Girt, M. Stirniman, “Perpendicular media with Cr-doped Fe-alloy-containing soft underlayer (SUL) for improved corrosion performance”, Country USA, Patent #7,566,508, issued on Jul 28, 2009.
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