Jitter reduction by using a continuous hard-magnetic layer for perpendicular recording media

Kenji Miura, Hiroaki Muraoka, Yoshiaki Sonobe, Yoshihisa Nakamura

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)

Abstract

Reduction of medium noise is crucial in perpendicular magnetic recording. The coupled granular and continuous (CGC) medium that has a layered continuous and granular film layer is a candidate for obtaining high SNR. We investigated noise characteristics of the CGC double-layered medium by focusing on transition jitter and magnetization transition analysis with an MFM. Results show that transition smoothing is considered to take place by depositing the continuons layer from analysis of waveform and MFM images. Transition jitter is redueed with CGC structure. And high thermal stability is simultaneously achieved.

Original languageEnglish
Pages (from-to)2054-2056
Number of pages3
JournalIEEE Transactions on Magnetics
Volume38
Issue number5 I
DOIs
Publication statusPublished - 2002 Sep
Event2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands
Duration: 2002 Apr 282002 May 2

Keywords

  • CGC medium
  • Cross-track correlation length
  • Medium noise
  • Multilayer
  • Perpendicular recording medium
  • Transition jitter

ASJC Scopus subject areas

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

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