Target of transition jitter and transition parameter for over 200 Gb/in2 in perpendicular magnetic recording

Takeshi Abe, Kenji Miura, Hiroaki Muraoka, Hajime Aoi, Yoshihisa Nakamura

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In perpendicular magnetic recording, the transition position jitter σj is a dominant source of medium noise. The transition width πa influences isolated pulsewidth. The influence of these parameters on error rate performance at an areal density of 200 Gb/in2 is studied using a software channel for the perpendicular response. The dependence of the calculated bit-error rate (BER) on the parameters is explicitly shown. The results indicate that the transition jitter strongly restricts the BER, unless the pulsewidth is small enough. However, for larger pulsewidth, it remarkably deteriorates BER. Under typical conditions, the pulsewidth T50 and the transition jitter σj, should be less than 26 and 1.6 nm, respectively for 200 Gb/in2.

Original languageEnglish
Pages (from-to)2573-2575
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number4 II
Publication statusPublished - 2004 Jul
Externally publishedYes


  • Error rate performance
  • Perpendicular magnetic recording
  • Pulsewidth
  • Transition jitter
  • Transition parameter

ASJC Scopus subject areas

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


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