Magnetic recording medium, the manufacturing method and magnetic recording apparatus using the same

This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic film on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective coating mainly composed o...

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Bibliographische Detailangaben
Hauptverfasser: Ono, Toshinori, Kokaku, Yuuichi, Honda, Yoshinori, Fujimaki, Shigehiko, Yatsue, Tooru
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic film on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective coating mainly composed of carbon for protecting the magnetic film exceeds 20%. The bonding force between the protective coating layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.