Soft magnetic film having saturation magnetic flux density Bs of at least 2.0 T and magnetic head including the same
    4.
    发明授权
    Soft magnetic film having saturation magnetic flux density Bs of at least 2.0 T and magnetic head including the same 有权
    具有至少2.0T的饱和磁通密度Bs和包含该磁性磁头的磁头的软磁性膜

    公开(公告)号:US07095586B2

    公开(公告)日:2006-08-22

    申请号:US10183199

    申请日:2002-06-27

    IPC分类号: G11B5/127

    摘要: A soft magnetic film comprising an FeCo alloy containing noble metals such as Pr and Rh. This soft magnetic film has a saturation magnetic flux density Bs of at least 2.0 and high corrosion resistance. This soft magnetic film may be included in a thin-film magnetic head. A lower magnetic pole layer or an upper magnetic pole layer of the thin-film magnetic head has a composition represented by the formula FeXCoYαZ, wherein α is at least one element selected from the group consisting of Pd, Pt, Ru, and Ir, and wherein the ratio X/Y by mass percent of Fe to Co is in the range of 2 to 5, the α content Z is in the range of 0.5 to 18 mass percent, and X+Y+Z=100 mass percent.

    摘要翻译: 包含含有贵金属如Pr和Rh的FeCo合金的软磁性膜。 该软磁性膜的饱和磁通密度Bs为2.0以上,耐腐蚀性高。 该软磁性膜可以包含在薄膜磁头中。 薄膜磁头的下磁极层或上磁极层具有由下式表示的组成:由下式表示的组成: 其中α是选自Pd,Pt,Ru和Ir中的至少一种元素,并且其中Fe与Co的质量百分比X / Y的比例在2至5的范围内,α 含量Z在0.5〜18质量%的范围内,X + Y + Z = 100质量%。