High field-gradient design of single-pole write-head with planar pole structure

Kiyoshi Yamakawa, Hiroaki Muraoka, Kinya Fudano, Simon John Greaves, Yuichi Ohsawa, Kazuyuki Ise, Yoshihisa Nakamura

研究成果: Article › 査読

9 被引用数 (Scopus)

抄録

A planar single-pole head generating a large head field was investigated to improve head field distribution with a steep field gradient. Good writing performance is generally difficult for a narrow track writer. This work presents a novel design of the main pole shape, the three-step-slope, to achieve a high gradient and strong write head field for terabit recording. Furthermore, the medium design was investigated to increase head-to-medium interaction for achieving a high field gradient and narrow field distribution. A soft guard band in the recording layer and a cross-track groove on the SUL surface were effective for improving the field gradient.

本文言語English
ページ（範囲）730-737
ページ数8
ジャーナルIEEE Transactions on Magnetics
巻46
号3 PART 1
DOI
出版ステータスPublished - 2010 3 1

ASJC Scopus subject areas

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

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