Highly Sensitive Single Pole Head with Laminated Thin Film Coils

Nianhua Jiang, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A novel single pole head with laminated thin film coils is proposed in this paper. Laminated thin film coils, between which a main pole is laid, are put very close to the media to capture most of the reproduced flux. In addition, a ferrite return yoke is placed just under the lower conductor to shorten the head magnetic flux path. These approaches bring high read/write efficiency and small head noise owing to low head impedance. With only one or two-turn coils, Co-Cr/Fe-Ni-Nb double-layered media were saturated at magneto-motive force of 0.05 ampere-turn, and overwrite of the two-turn head reached 35 dB. High normalized output of 1000 nVp-p/µm · turn · m/s was obtained. Much higher recording and reproducing sensitivity than ordinary inductive single pole heads was achieved.

Original languageEnglish
Pages (from-to)2715-2717
Number of pages3
JournalIEEE Transactions on Magnetics
Volume31
Issue number6
DOIs
Publication statusPublished - 1995 Nov

ASJC Scopus subject areas

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

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