A single-pole-type head design for 400 Gb/in2 recording

Yasushi Kanai, Simon J. Greaves, Kiyoshi Yamakawa, Hajime Aoi, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


A single-pole-type head design for 400 Gb/in2 based on finite-element method (FEM) simulations is presented. The conditions required to generate a sufficient field for this areal density are shown. To reach this density various media were considered and written track widths, erase bands, signal-to-noise ratios, and written bit patterns were derived from Laudau-Lifshitz-Gilbert (LLG) simulations.

Original languageEnglish
Pages (from-to)687-695
Number of pages9
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - 2005 Feb


  • Finite-element methods
  • Laudau-Lifshitz-Gilbert (LLG) micromagnetic calculations
  • Perpendicular magnetic recording
  • Single-pole-type head


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