Magnetic recording medium with a Ga3Pt5 structured underlayer and a cobalt-based magnetic layer
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United States of America Patent
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Jul 22, 2003
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N/A
app pub date -
Sep 29, 2000
filing date -
Sep 29, 2000
priority date (Note) -
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Abstract
The present invention provides a longitudinal magnetic recording media having a substrate, a Co or Co alloy based magnetic layer arid an underlayer disposed between the substrate and the magnetic layer. The underlayer is made of a material having a Ga.sub.3 Pt.sub.5 crystalline structure, most preferably Ni.sub.5 Al.sub.3. Several intermediate layers, disposed between the underlayer and the magnetic layer may also be included.
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