MAGNETIC READOUT HEAD USING INDUCED RF PERMEABILITY VARIATION IN Ni-Fe FILM.

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

Research output: Contribution to journalArticle

Abstract

A magnetic readout technique is proposed that can extract a high-quality output from high-density recorded signals. The principle utilizes sharp RF permeability changes in a soft magnetic film due to a weak external field. This variation is caused by both magnetization rotation and ferromagnetic resonance. A magnetic readout head that operates on this principle was fabricated and evaluated using sinusoidal signals (0. 5-10 MHz) which were saturation-recorded on a magnetic tape with a ferrite ring head. Performance results are reported for the readout head.

Original languageEnglish
Pages (from-to)297-303
Number of pages7
JournalIEEE Translation Journal on Magnetics in Japan
VolumeTJMJ-2
Issue number4
Publication statusPublished - 1985 Apr
Externally publishedYes

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Magnetic films
Ferromagnetic resonance
Magnetic tape
Ferrite
Magnetization

ASJC Scopus subject areas

  • Engineering(all)

Cite this

MAGNETIC READOUT HEAD USING INDUCED RF PERMEABILITY VARIATION IN Ni-Fe FILM. / Akiyama, J.; Iwasaki, H.; Yatabe, S.; Chiba, S.

In: IEEE Translation Journal on Magnetics in Japan, Vol. TJMJ-2, No. 4, 04.1985, p. 297-303.

Research output: Contribution to journalArticle

Akiyama, J, Iwasaki, H, Yatabe, S & Chiba, S 1985, 'MAGNETIC READOUT HEAD USING INDUCED RF PERMEABILITY VARIATION IN Ni-Fe FILM.', IEEE Translation Journal on Magnetics in Japan, vol. TJMJ-2, no. 4, pp. 297-303.
Akiyama, J. ; Iwasaki, H. ; Yatabe, S. ; Chiba, S. / MAGNETIC READOUT HEAD USING INDUCED RF PERMEABILITY VARIATION IN Ni-Fe FILM. In: IEEE Translation Journal on Magnetics in Japan. 1985 ; Vol. TJMJ-2, No. 4. pp. 297-303.
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