日本応用磁気学会誌
Online ISSN : 1880-4004
Print ISSN : 0285-0192
ISSN-L : 0285-0192
磁気ヘッド
高周波対応Fe系−新ダブル積層ヘッド
夏井 昭長武田 裕美坂口 昌也石田 達朗長谷川 博幸村岡 俊作高橋 健
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ジャーナル オープンアクセス

1998 年 22 巻 4_2 号 p. 265-268

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In a previously developed double-laminated Fe-based alloy film head, it is thought that local permeability deterioration around the magnetic gap causes disagreement between the actual output and the value estimated from the permeability observed in the solid film. Accordingly, a new double-laminated Fe-based alloy film was developed, making full use of the techniques of double lamination, anisotropy modulation control, and magnetostatic coupling. No severe deterioration of the film‘s permeability caused by its shape factor was observed. The bulk head using this film exhibited higher reproduction output in a wider frequency range without any frequency ripples, resulting in a 7 dB output improvement at 28 MHz over a conventional laminated head using Co-based amorphous alloy film.

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© 1998 (社)日本応用磁気学会
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