Estimation of maximum track density in shingled writing

Kenji Miura, Eiji Yamamoto, Hajime Aoi, Hiroaki Muraoka

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


In this paper, the feasibility of two-dimensional magnetic recording is discussed from the viewpoint of high track density. 747 curves of shingled track were measured using existing heads and media and were interpreted with a squeezing model dominated by the SN ratio of the read head output. As long as a reader can be placed on the median line of the squeezed data area, wider OTC than that of conventional writing will result. The modeled 747 curves were in good agreement with the experimental data for both conventional writing and shingled writing. The feasibility of narrow track pitch shingled writing was shown, however, write-to-write misregistration should be minimized to maximize the track density.

Original languageEnglish
Article number5257018
Pages (from-to)3722-3725
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number10
Publication statusPublished - 2009 Oct
Externally publishedYes


  • 747 curve
  • Off track capability
  • Shingled writing
  • Squeezed track
  • Two-dimensional magnetic recording (TDMR)

ASJC Scopus subject areas

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


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