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发明授权
US07179360B2 Soft magnetic film having improved saturated magnetic flux density, magnetic head using the same, and manufacturing method therefore 有权
具有提高的饱和磁通密度的软磁性膜，使用其的磁头及其制造方法

Soft magnetic film having improved saturated magnetic flux density, magnetic head using the same, and manufacturing method therefore
摘要：
A lower magnetic pole layer and/or an upper magnetic pole layer are formed of a CoFeα alloy in which the component ratio X of Co is 8 to 48 mass %, the component ratio Y of Fe is 50 to 90 mass %, the component ratio Z of the element α (the element α is at least one of Ni and Cr) is 2 to 20 mass %, and the equation X+Y+Z=100 mass % is satisfied. Consequently, the saturated magnetic flux density can be 2.0 T or more, and a thin-film magnetic head have a higher recording density can be manufactured
摘要（中）：

下磁极层和/或上磁极层由Co组分比X为8〜48质量％的CoFealpha合金形成，Fe的成分比例Y为50〜90质量％，成分比例 元素α（元素α为Ni和Cr中的至少一种）的Z为2〜20质量％，并且满足式X + Y + Z = 100质量％。 因此，饱和磁通密度可以为2.0T以上，并且可以制造具有较高记录密度的薄膜磁头

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