Magnetoresistive effect element and magnetic memory
    94.
    发明授权
    Magnetoresistive effect element and magnetic memory 有权
    磁阻效应元件和磁存储器

    公开(公告)号:US08750029B2

    公开(公告)日:2014-06-10

    申请号:US13233420

    申请日:2011-09-15

    IPC分类号: G11C11/15 H01L43/08

    摘要: According to one embodiment, a magnetoresistive effect element includes a recording layer including ferromagnetic material with perpendicular magnetic anisotropy to a film surface and a variable orientation of magnetization, a reference layer including ferromagnetic material with perpendicular magnetic anisotropy to a film surface and an invariable orientation of magnetization, a nonmagnetic layer between the recording layer and the reference layer, a first underlayer on a side of the recoding layer opposite to a side on which the nonmagnetic layer is provided, and a second underlayer between the recording layer and the first underlayer. The second underlayer is a Pd film including a concentration of 3×1015 atms/cm2.

    摘要翻译: 根据一个实施例,磁阻效应元件包括记录层,其包括对膜表面具有垂直磁各向异性的铁磁材料和磁化的可变取向,包括具有垂直磁性各向异性的铁磁材料的参考层和膜表面的不变取向 磁化,记录层和参考层之间的非磁性层,与记录层和第一底层之间的第二底层与编码层的与设置非磁性层的一侧相反的一侧的第一底层。 第二底层是包含浓度为3×1015atms / cm 2的Pd膜。

    Magnetoresistance effect element and magnetic random access memory
    95.
    发明授权
    Magnetoresistance effect element and magnetic random access memory 有权
    磁阻效应元件和磁性随机存取存储器

    公开(公告)号:US08279663B2

    公开(公告)日:2012-10-02

    申请号:US13184976

    申请日:2011-07-18

    IPC分类号: G11C11/00

    摘要: A magnetoresistance effect element includes: a first ferromagnetic layer having invariable magnetization perpendicular to a film plane; a second ferromagnetic layer having variable magnetization perpendicular to the film plane; a first nonmagnetic layer interposed between the first ferromagnetic layer and the second ferromagnetic layer; a third ferromagnetic layer provided on an opposite side of the second ferromagnetic layer from the first nonmagnetic layer, and having variable magnetization parallel to the film plane; and a second nonmagnetic layer interposed between the second and third ferromagnetic layers. Spin-polarized electrons are injected into the second ferromagnetic layer by flowing a current in the direction perpendicular to the film planes between the first and third ferromagnetic layers, precession movement is induced in the magnetization of the third ferromagnetic layer by injecting the spin-polarized electrons, and a microwave magnetic field of a frequency corresponding to the precession movement is applied to the second ferromagnetic layer.

    摘要翻译: 磁阻效应元件包括:具有垂直于膜平面的不变磁化的第一铁磁层; 具有垂直于膜平面的可变磁化的第二铁磁层; 介于所述第一铁磁层和所述第二铁磁层之间的第一非磁性层; 第三铁磁层,其设置在所述第二铁磁层的与所述第一非磁性层相反的一侧上,并且具有与所述膜平面平行的可变磁化强度; 以及插入在第二和第三铁磁层之间的第二非磁性层。 通过在垂直于第一和第三铁磁层之间的膜平面的方向上流动电流,将旋转极化电子注入到第二铁磁层中,通过注入自旋极化电子在第三铁磁层的磁化中引起进动运动 并且将对应于进动运动的频率的微波磁场施加到第二铁磁层。

    Magnetoresistive effect device and magnetic memory
    97.
    发明授权
    Magnetoresistive effect device and magnetic memory 有权
    磁阻效应器和磁记忆体

    公开(公告)号:US08223533B2

    公开(公告)日:2012-07-17

    申请号:US12556883

    申请日:2009-09-10

    IPC分类号: G11C11/00

    摘要: A magnetic memory includes a magnetoresistive effect device comprising: a first ferromagnetic layer that has magnetic anisotropy in a direction perpendicular to a film plane thereof; a first nonmagnetic layer that is provided on the first ferromagnetic layer; a first reference layer that is provided on the first nonmagnetic layer, has magnetic anisotropy in a direction perpendicular to a film plane thereof, has magnetization antiparallel to a magnetization direction of the first ferromagnetic layer, and has a film thickness that is 1/5.2 to 1/1.5 times as large as a film thickness of the first ferromagnetic layer in the direction perpendicular to the film plane; a second nonmagnetic layer that is provided on the first reference layer; and a storage layer that is provided on the second nonmagnetic layer, has magnetic anisotropy in a direction perpendicular to a film plane thereof, and has a magnetization direction varied by spin-polarized electrons caused by flowing the current to the magnetoresistive effect device.

    摘要翻译: 磁存储器包括磁阻效应器件,包括:在垂直于其膜平面的方向上具有磁各向异性的第一铁磁层; 设置在第一铁磁层上的第一非磁性层; 设置在第一非磁性层上的第一参考层在垂直于其膜平面的方向上具有磁各向异性,具有与第一铁磁层的磁化方向反平行的磁化,并且具有1 / 5.2〜 在第一铁磁层的垂直于膜平面的方向上的膜厚度的1/15倍; 设置在第一参考层上的第二非磁性层; 并且设置在第二非磁性层上的存储层在垂直于其膜平面的方向上具有磁各向异性,并且由于使电流流向磁阻效应器而引起的由自旋极化电子变化的磁化方向。

    Magnetoresistive device and magnetic random access memory
    99.
    发明授权
    Magnetoresistive device and magnetic random access memory 有权
    磁阻器件和磁性随机存取存储器

    公开(公告)号:US08169817B2

    公开(公告)日:2012-05-01

    申请号:US12715699

    申请日:2010-03-02

    IPC分类号: G11C11/00

    摘要: A magnetoresistive device includes: a magnetic recording layer including a first magnetic layer having perpendicular magnetic anisotropy, and a second magnetic layer having in-plane magnetic anisotropy and being exchange-coupled to the first magnetic layer, Curie temperature of the second magnetic layer being lower than Curie temperature of the first magnetic layer, and the magnetic recording layer having a magnetization direction perpendicular to a film plane; a magnetic reference layer having a magnetization direction which is perpendicular to a film plane and is invariable; and a nonmagnetic layer provided between the magnetic recording layer and the magnetic reference layer. The magnetization direction of the magnetic recording layer is changeable by spin-polarized electrons caused by flowing current between the magnetic recording layer and the magnetic reference layer in a direction perpendicular to the film plane.

    摘要翻译: 磁阻器件包括:包括具有垂直磁各向异性的第一磁性层的磁记录层和具有面内磁各向异性并与第一磁性层交换耦合的第二磁性层,第二磁性层的居里温度较低 第一磁性层的居里温度,磁化方向垂直于膜面的磁记录层; 具有垂直于膜平面的磁化方向且不变的磁参考层; 以及设置在磁记录层和磁参考层之间的非磁性层。 磁记录层的磁化方向可以由磁记录层和磁参考层之间的流动电流在垂直于膜平面的方向上引起的自旋极化电子改变。