Film thickness and width dependence of output voltage response for read-out head using induced rf permeability change

H. Iwasaki, J. Akiyama, S. Yatabe

研究成果: Article査読

2 被引用数 (Scopus)

抄録

For thin film magnetic read-out heads using induced RF permeability change, named an Active Head by the authors, the relation between the output voltage response to magnetic fields and domain behavior involved was investigated with film thickness and width as parameters. with decreasing film width, the output voltage change decreased markedly, especially for films about 200nm thick, while B-H curves changed from closed curves to square curves and high-density Neel walls appeared. It has been demonstrated that the decrease in output voltage change is associated with the suppression of magnetization rotation, due to high-density Neel walls. However, films with high-density Bloch walls showed relatively large output voltage change, even with decreasing film width. Films without high-density Neel walls, such as 800nm thick films, are preferable for the high sensitivity narrow track Active Head.

本文言語English
ページ(範囲)2506-2508
ページ数3
ジャーナルIEEE Transactions on Magnetics
23
5
DOI
出版ステータスPublished - 1987 9

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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