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    • 5. 发明授权
    • Cobalt-platinum or iron-plantinum magnetic material containing 1% to 40% Cu, Ni or B
    • 含有1%至40%Cu,Ni或B的钴 - 铂或铁铁磁性材料
    • US07286324B2
    • 2007-10-23
    • US10813005
    • 2004-03-31
    • Nobuhiro YasuiTohru Den
    • Nobuhiro YasuiTohru Den
    • G11B5/82G11B5/66G11B5/127G11B5/33
    • G11B5/65G11B5/012G11B5/653G11B5/656G11B5/84
    • A CoPt- or FePt-alloy magnetic material in which a temperature to transform into an L10-ordered alloy is reduced and magnetic anisotropy energy is controlled, and a method for manufacturing the magnetic material are provided. In a CoPt- or FePt-alloy magnetic material obtained according to plating, at least one element of Cu, Ni and B is contained with an atomic percent equal to or more than 1% and equal to or less than 40%. A method for manufacturing a magnetic material includes a step of depositing a magnetic material in which at least one element of Cu, Ni and B is contained in a CoPt- or FePt-alloy magnetic material with an atomic percent equal to or more than 1% and equal to or less than 40%, from a plating solution, and a step of transforming the deposited magnetic material into an L10-ordered alloy according to annealing at a temperature equal to or lower than 500° C.
    • 其中转变成L1 <0> 的合金的温度降低并且磁各向异性能被控制的CoPt或FePt合金磁性材料,并且提供了制造磁性材料的方法。 在根据电镀获得的CoPt或FePt合金磁性材料中,含有等于或大于1%且等于或小于40%的原子百分比的Cu,Ni和B的至少一种元素。 一种制造磁性材料的方法包括沉积磁性材料的步骤,其中在CoPt-或FePt-合金磁性材料中含有至少一种Cu,Ni和B元素,原子百分比等于或大于1% 并且等于或小于40%;以及在等于或低于500°的温度下退火,将沉积的磁性材料转变成L1 <! - SIPO