高周波対応Fe系-新ダブル積層ヘッド

概要

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In a previously diveloped 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 balue 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 sgape factor was observed. The bulk head using this film exhibited higher reproduction output in a wider frequency range without any frequency range without any frequency ripplis, resulting in a 7 dB output improvement at 28 MHz over a conventional laminated head using Co-vased amorphous alloy film.
社団法人日本磁気学会の論文
1998-04-15