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    • 92. 发明授权
    • Magnetic transducer with interlayer thin-film magnetic head and method of manufacturing thereof
    • 具有层间薄膜磁头的磁性换能器及其制造方法
    • US06661623B1
    • 2003-12-09
    • US09425967
    • 1999-10-25
    • Yoshihiro TsuchiyaSatoru ArakiMasashi Sano
    • Yoshihiro TsuchiyaSatoru ArakiMasashi Sano
    • G11B539
    • B82Y25/00B82Y10/00G11B5/313G11B5/3903G11B2005/3996
    • Provided are a magnetic transducer capable of increasing a resistance change and obtaining an appropriate coercive force, a thin film magnetic head, a method of manufacturing a magnetic transducer and a method of manufacturing a thin film magnetic head. A stack, a spin valve film has a stacked structure comprising a first soft magnetic layer, a second soft magnetic layer, a nonmagnetic metal layer, a ferromagnetic layer, an antiferromagnetic layer and a protective layer which are stacked in sequence on an underlying layer. Electrical resistance is changed in accordance with a relative angle between the orientation of magnetization of the ferromagnetic layer and the orientation of magnetization of the first and second soft magnetic layers. A soft magnetic interlayer having magnetism and the electrical resistance higher than the electrical resistance of the first soft magnetic layer is formed in the first soft magnetic layer. When a current flows through the stack, electrons are reflected by the surface of the soft magnetic interlayer and thus a path for the electrons is narrowed. Therefore, a rate of resistance change is increased.
    • 提供能够增加电阻变化并获得适当矫顽力的磁换能器,薄膜磁头,制造磁换能器的方法和制造薄膜磁头的方法。 叠层,自旋阀膜具有堆叠结构,其包括依次堆叠在下层上的第一软磁层,第二软磁层,非磁性金属层,铁磁层,反铁磁层和保护层。 电阻根据铁磁层的磁化取向与第一和第二软磁层的磁化方向之间的相对角度而改变。 在第一软磁性层中形成具有磁性的软磁性中间层和比第一软磁性层的电阻高的电阻。 当电流流过堆叠时,电子被软磁中间层的表面反射,因此电子的路径变窄。 因此,电阻变化率增加。