Shingled magnetic recording on bit patterned media

Simon Greaves, Yasushi Kanai, Hiroaki Muraoka

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Shingled magnetic recording on bit patterned media with areal densities of 24 Tbit/in2 is examined. The use of a shingled recording scheme allows wider write poles and dots with higher anisotropy to be used. The down-track and cross-track write margins can be tailored to suit the tolerances of the drive by varying the bit cell aspect ratio. Readback waveforms are calculated for sensors of various size, including the effect of thermal noise in the sensor, and the combination of a wide sensor and bit aspect ratio (BAR) of 1:1 is found to give the highest SNR.

Original languageEnglish
Article number5467475
Pages (from-to)1460-1463
Number of pages4
JournalIEEE Transactions on Magnetics
Volume46
Issue number6
DOIs
Publication statusPublished - 2010 Jun 1

Keywords

  • Bit patterned perpendicular media
  • Heads
  • Magnetic recording
  • Simulation

ASJC Scopus subject areas

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

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