Resolution improvement of transition width with shielded pole writer

Weixing Xia, Hajime Aoi, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The resolution improvement of isolated magnetization transition with shielded pole writer was investigated with a two-dimensional (2-D) finite-element method (FEM) calculation using a media model. Two kinds of single-pole type (SPT) head were used in the calculation. The medium coercivity was varied from 3000 Oe to 9000 Oe. The transition parameter πa was improved from 56.80 nm (Hc = 3000 Oe) to 7.14 nm (He = 9000 Oe) using the regular SPT head, however a significant reduction was achieved from 26.32 nm (Hc = 3000 Oe) to 5.26 nm (Hc = 9000 Oe) using the front yoke head with high gradient. The recording resolution can be improved with the front yoke head for a large range of media.

Original languageEnglish
Pages (from-to)2365-2367
Number of pages3
JournalIEEE Transactions on Magnetics
Volume40
Issue number4 II
DOIs
Publication statusPublished - 2004 Jul

Keywords

  • Field gradient
  • Perpendicular magnetic recording
  • Recording resolution
  • Single-pole type (SPT) head

ASJC Scopus subject areas

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

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