Magnetic Read–out Head Using Induced RF Permeability Variation in Ni–Fe Thin Film

J. Akiyama, H. Iwasaki, S. Yatabe, S. Chiba

Research output: Contribution to journalArticle


A field-sensitive type single pole read-out head was trial-fabricated and its characteristics were studied. Playback sensitivity in the lower recording frequency region declined as the thickness of the Ni-Fe film decreased, but in the higher recording frequency region the read-out output level was independent of Ni-Fe film thickness maintaining an almost constant level, much higher than conventional heads. The carrier-to-noise ratio is also good. These two results show that this type of head is well suited to highly sensitive magnetic readout heads for high-density magnetic recording.

Original languageEnglish
Pages (from-to)659-660
Number of pages2
JournalIEEE Translation Journal on Magnetics in Japan
Issue number7
Publication statusPublished - 1987 Jul


ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Engineering(all)

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