Magnetic recording medium including a diamond-like carbon protective film with hydrogen and at least two additional elements
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United States of America Patent
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Aug 1, 2006
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N/A
app pub date -
Nov 17, 2003
filing date -
Nov 19, 1992
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Expired
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Abstract
A magnetic recording medium having a diamond-like carbon (DLC) film added therein a Group IV element of the periodic table such as silicon, particularly in the vicinity of the boundary between the magnetic material and the formed DLC film. Since a DLC having low friction coefficient can be formed, the centerline average roughness can be reduced to 30 nm or even less. Accordingly, a magnetic recording medium improved in magnetic properties and in lubricity can be obtained.
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