SINGLE-LAYERED FERROMAGNETIC RECORDING FILM WITH PERPENDICULAR MAGNETIC ANISOTROPY
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United States of America Patent
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Issued Date -
May 5, 2011
app pub date -
Mar 23, 2010
filing date -
Nov 3, 2009
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Abandoned
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Abstract
The present invention discloses a single-layered recording film with perpendicular magnetic anisotropy. The single-layered recording film includes a substrate and a ferromagnetic layer. The ferromagnetic layer is formed on the substrate and annealed by a rapid thermal annealing process. After annealing, the average grain size of the single-layered recording film is close to the film thickness of ferromagnetic layer, which is beneficial to achieve a single-layered recording film with perpendicular magnetic anisotropy.
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