TY - JOUR
T1 - Optimization of Precompensation for NLTS in Perpendicular Magnetic Recording
AU - Miura, Kenji
AU - Seki, Kenta
AU - Hashimoto, Mitsuhiro
AU - Muraoka, Hiroaki
AU - Aoi, Hajime
AU - Nakamura, Yoshihisa
PY - 2006/10
Y1 - 2006/10
N2 - Nonlinear transition shift (NLTS) and nonlinear amplitude distortion (NLAD) in perpendicular magnetic recording were investigated for CoPtCr-Si02 media with various Si02 contents that have various inter-granular exchange coupling. The tighter inter-granular coupling increases both NLTS and NLAD. The NLTS and NLAD were discriminated and extracted NLTS showed that perpendicular media exhibited the opposite shift to longitudinal media as theoretically expected. Careful precompensation optimization is required to obtain a good error-rate performance at high-linear densities.
AB - Nonlinear transition shift (NLTS) and nonlinear amplitude distortion (NLAD) in perpendicular magnetic recording were investigated for CoPtCr-Si02 media with various Si02 contents that have various inter-granular exchange coupling. The tighter inter-granular coupling increases both NLTS and NLAD. The NLTS and NLAD were discriminated and extracted NLTS showed that perpendicular media exhibited the opposite shift to longitudinal media as theoretically expected. Careful precompensation optimization is required to obtain a good error-rate performance at high-linear densities.
KW - Nonlinear amplitude distortion (NLAD)
KW - nonlinear transition shift (NLTS)
KW - partial erasure
KW - perpendicular magnetic recording
KW - precompensation
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U2 - 10.1109/TMAG.2006.879574
DO - 10.1109/TMAG.2006.879574
M3 - Article
AN - SCOPUS:85008048619
VL - 42
SP - 2297
EP - 2299
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 10
ER -