Optimization of Precompensation for NLTS in Perpendicular Magnetic Recording

Kenji Miura, Kenta Seki, Mitsuhiro Hashimoto, Hiroaki Muraoka, Hajime Aoi, Yoshihisa Nakamura

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)2297-2299
Number of pages3
JournalIEEE Transactions on Magnetics
Volume42
Issue number10
DOIs
Publication statusPublished - 2006 Oct

Keywords

  • Nonlinear amplitude distortion (NLAD)
  • nonlinear transition shift (NLTS)
  • partial erasure
  • perpendicular magnetic recording
  • precompensation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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