Recording field analysis of narrow-track SPT head with side shields, tapered main pole, and tapered return path for 1 Tb/in2

Yasushi Kanai, Ryo Matsubara, Hideaki Watanabe, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Results are presented for a three-dimensional finite-element method simulation of a head/medium model for 1 Tb/in2 (540 ktpi with 38-nm track width and 47-nm track pitch, 1.8 Mbpi with minimum bit length of 11 nm). We have simultaneously introduced three new structures, side shields, tapered main pole, and tapered return path for the head in order to satisfy the requirement for a large recording field, small stray field to the adjacent tracks, and a field distribution that is robust for skew problems, which are all indispensable for higher linear and track density recording.

Original languageEnglish
Pages (from-to)1955-1960
Number of pages6
JournalIEEE Transactions on Magnetics
Volume39
Issue number4 I
DOIs
Publication statusPublished - 2003 Jul 1

Keywords

  • Finite-element methods
  • High track density recording
  • Perpendicular magnetic recording
  • Single-pole-type head

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Recording field analysis of narrow-track SPT head with side shields, tapered main pole, and tapered return path for 1 Tb/in<sup>2</sup>'. Together they form a unique fingerprint.

  • Cite this