Instability Improvement in a Single Pole Head Using a Co-Zr-Nb Multi-Layered Main-Pole Film

T. Inaguma, I. Watanabe, H. Muraoka, Y. Nakamura

研究成果: Article査読

抄録

Perpendicular magnetic recording is one method of achieving high recording densities. In perpendicular magnetic recording using a single-pole type (SPT) head, a main pole film with stable operation must be employed. In this respect, use of a single-layer main pole film has a serious limitation because of its domain structure. On the other hand, multilayer main pole films are thought to have no such limitations, because closure domains are eliminated by magnetic coupling. However, SPT heads using multilayer thin films often show instability in reproduce processes. We found that the instability could be removed by applying a dc magnetic field to the multilayer main pole. The stress in the multilayer film was related to instability in the head's behavior. We also showed that an underlayer between the magnetic layers and the substrate is necessary to eliminate the stress in multilayer films.

本文言語English
ページ(範囲)21-27
ページ数7
ジャーナルIEEE Translation Journal on Magnetics in Japan
9
4
DOI
出版ステータスPublished - 1994
外部発表はい

ASJC Scopus subject areas

  • 工学(その他)
  • 工学(全般)

フィンガープリント

「Instability Improvement in a Single Pole Head Using a Co-Zr-Nb Multi-Layered Main-Pole Film」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル