CURRENT PERPENDICULAR TO THE PLANE READER WITH IMPROVED GIANT MAGNETO-RESISTANCE
    22.
    发明申请
    CURRENT PERPENDICULAR TO THE PLANE READER WITH IMPROVED GIANT MAGNETO-RESISTANCE 审中-公开
    具有改进的巨大磁阻的平面读取器的当前流行度

    公开(公告)号:US20110200845A1

    公开(公告)日:2011-08-18

    申请号:US12706644

    申请日:2010-02-16

    IPC分类号: G11B5/39

    摘要: In some embodiments, a current perpendicular to the plane giant magneto-resistance (CPP GMR) read sensor may include a reference layer and/or a free layer that includes a plurality of sub-layers. For example, at least one of the reference layer or free layer may include a first ferromagnetic sub-layer, a second ferromagnetic sub-layer, and a Heusler alloy layer located between the first ferromagnetic sub-layer and the second ferromagnetic sub-layer. In some embodiments, a CPP GMR read sensor may include a current closed path (CCP) spacer layer between the reference layer and the free layer. The CCP spacer layer may include Ag and Al2O3. In further embodiments, a CPP GMR read sensor may include a Heusler alloy free layer, a Heusler alloy reference layer, and a CCP spacer layer.

    摘要翻译: 在一些实施例中,垂直于平面巨磁阻(CPP GMR)读取传感器的电流可以包括参考层和/或包括多个子层的自由层。 例如,参考层或自由层中的至少一个可以包括位于第一铁磁子层和第二铁磁子层之间的第一铁磁子层,第二铁磁子层和Heusler合金层。 在一些实施例中,CPP GMR读取传感器可以包括参考层和自由层之间的当前封闭路径(CCP)间隔层。 CCP间隔层可以包括Ag和Al 2 O 3。 在另外的实施例中,CPP GMR读取传感器可以包括Heusler合金自由层,Heusler合金参考层和CCP间隔层。