Perpendicular recording medium and magnetic recording apparatus
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United States of America Patent
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Aug 11, 1998
Issued Date -
N/A
app pub date -
Jun 6, 1995
filing date -
Mar 10, 1993
priority date (Note) -
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Abstract
A longitudinal recording medium and a magnetic recording apparatus containing the same, comprising a substrate and a longitudinal magnetization film formed on the substrate containing grains of a Co-based alloy, and exhibiting an oxygen concentration distribution having two peaks as follows: a peak of higher oxygen concentration pertaining to grain boundaries of the longitudinal magnetization film, and a peak of lower oxygen concentration pertaining to grain interiors of the longitudinal magnetization film.
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