Single layer small grain size FePT:C film for heat assisted magnetic recording media

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United States of America Patent

PATENT NO 9542968
SERIAL NO

14069075

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Abstract

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FePt-based heat assisted magnetic recording (HAMR) media comprising a thick granular FePt:C magnetic recording layer capable of maintaining a single layer film having desirable magnetic properties. According to one embodiment, the thick granular FePt:C magnetic recording layer comprises a plurality of carbon doped FePt alloy columnar grains, where the plurality of carbon doped FePt alloy columnar grains comprise a carbon gradient along the thickness of the hard magnetic recording layer.

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Patent Owner(s)

  • WD MEDIA, INC.;WD MEDIA, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Acharya, B Ramamurthy Fremont, US 42 1279
Chernyshov, Alexander S San Jose, US 18 405
Yuan, Hua Fremont, US 35 702

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