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    • 2. 发明授权
    • Magnetic device
    • 磁性装置
    • US09178135B2
    • 2015-11-03
    • US14254858
    • 2014-04-16
    • Young-hyun KimHee-ju ShinWoo-jin KimSang-hwan Park
    • Young-hyun KimHee-ju ShinWoo-jin KimSang-hwan Park
    • H01L43/02H01L43/10H01L43/08H01L43/12H01L27/22
    • H01L43/10G11C11/161H01L27/228H01L43/08H01L43/12
    • A magnetic device can include a tunnel bather and a hybrid magnetization layer disposed adjacent the tunnel barrier. The hybrid magnetization layer can include a first perpendicular magnetic anisotropy (PMA) layer, a second PMA layer, and an amorphous blocking layer disposed between the first and second PMA layers. The first PMA layer can include a multi-layer film in which a first layer formed of Co and a second layer formed of Pt or Pd are alternately stacked. A first dopant formed of an element different from those of the first and second layers can also be included in the first PMA layer. The second PMA layer can be disposed between the first PMA layer and the tunnel barrier, and can include at least one element selected from a group consisting of Co, Fe, and Ni.
    • 磁性装置可以包括隧道沐浴器和邻近隧道屏障设置的混合磁化层。 混合磁化层可以包括第一垂直磁各向异性(PMA)层,第二PMA层和设置在第一和第二PMA层之间的非晶形阻挡层。 第一PMA层可以包括多层膜,其中由Co形成的第一层和由Pt或Pd形成的第二层交替堆叠。 由与第一层和第二层不同的元素形成的第一掺杂剂也可以包括在第一PMA层中。 第二PMA层可以设置在第一PMA层和隧道势垒之间,并且可以包括选自由Co,Fe和Ni组成的组中的至少一种元素。