Referenced Items are not available for this document.
In this paper, we present a novel mechanism for recording at a head held significantly below the medium coercivity in a perpendicular recording geometry. By applying a localized ac field at adequate frequency to the perpendicular recording medium, saturation recording can be achieved with recording field amplitudes significantly below the medium coercivity, or the medium perpendicular anisotropy field. A scheme utilizing spin torque to generate a localized ac field at high frequency (tens of gigahertz) with kilo-oersted field amplitude in the medium is proposed along with a systematic modeling analysis. Recording simulations at high linear densities are presented.
Published in:
Magnetics, IEEE Transactions on
(Volume:44
,
Issue:
1
)
Date of Publication: Jan. 2008
- Page(s):
- 125 - 131
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 10089259
- Digital Object Identifier :
- 10.1109/TMAG.2007.911031
- Date of Current Version :
- 18 December 2007
- Issue Date :
- Jan. 2008
- Sponsored by :
- IEEE Magnetics Society
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