Simulations of perpendicular media for 400 Gb/in2

Simon J. Greaves, Yasushi Kanai, Hiroaki Muraoka

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Head and medium designs to support areal densities of 400 Gb/in2 were investigated using micromagnetic modeling. The use of side shields allows the track pitch to be reduced, but only by about 10 nm. Reducing the main pole width also permits higher track densities, but the erase band width does not reduce significantly with the pole width reduction. In addition, the erase band width increases at higher linear densities and forms an increasing fraction of the total track width.

Original languageEnglish
Pages (from-to)713-718
Number of pages6
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - 2005 Feb


  • Head
  • Medium
  • Micromagnetic modeling
  • Perpendicular recording


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