Author: Girt, Erol
The present invention relates to perpendicular magnetic recording media with improved signal-to-medium noise ratio (“SMNR”) and thermal stability, which media include a pair of vertically spaced-apart perpendicular ferromagnetic layers which are anti-ferromagnetically coupled (“AFC”) across a non-magnetic spacer layer. The invention is of particular utility in the fabrication of data/information storage and retrieval media, e.g., hard disks, having ultra-high areal recording/storage densities.
E. Girt, “Anti-ferromagnetically coupled perpendicular magnetic recording media with oxide”, Country USA, Patent #7,842,409, issued on Nov 30, 2010.
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