作者: Yuji Uehara , Masahiro Kakehi , Shoji Ikeda , Naoki Takeguchi , Ikuya Tagawa
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摘要: An object of the present invention is to provide a recording head having magnetic pole simultaneously possessing high saturation flux density, permeability and electric resistivity, polycrystalline film comprising Fe whose content not less than 57.5 atomic % more 94.5 %; one or kinds elements selected from element group Al, B, Ga, Si, Ge, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W Rh, whole 1 15 N 0.5 10 O 1.5 22.5 %.