Magnetic recording medium and magnetic storage apparatus
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United States of America Patent
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Jun 19, 2007
Grant Date -
May 6, 2004
app pub date -
Oct 23, 2003
filing date -
Sep 7, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A magnetic recording medium includes a first magnetic layer, a second magnetic layer, and a non-magnetic coupling layer provided between the first and second magnetic layers so that the first and second magnetic layers are exchange-coupled and the magnetizations of the first and second magnetic layers are antiparallel. The first magnetic layer has an exchange coupling field Hex1 which is larger than the respective coercivities Hc1 and Hc2 of the first and second magnetic layers.
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