Chemically manipulated anomalous Hall effect and perpendicular magnetic anisotropy in Co/Pt multilayers

Chemically manipulated anomalous Hall effect and perpendicular magnetic anisotropy in Co/Pt multilayers
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Co/Pt 多层膜中化学操纵的反常霍尔效应和垂直磁各向异性

DOI:
10.1016/j.apsusc.2014.09.021
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发表时间:
2014-11
影响因子:
6.7
通讯作者:
Yu Guang-Hua
Yu Guang-Hua
中科院分区:
材料科学1区
文献类型:
--
作者:
Jiang Shao-Long;Chen Xi;Zhang Jing-Yan;Yang Guang;Teng Jiao;Li Xu-Jing;Cao Yi;Zhao Zhi-Duo;Yang Kang;Liu Yang;Yu Guang-Hua

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通过在MgO/[Co/Pt]3/MgO多层材料的Co层和MgO层之间引入Mg金属层,研究了MgO/[Co/Pt]3/MgO多层材料的化学异常霍尔效应(AHE)和垂直磁各向异性(PMA)。结果表明,与未添加Mg的多层材料相比,饱和异常霍尔电阻率(ρAH)和有效磁各向异性(Keff)分别增大125%和26%。x射线光电子能谱(XPS)分析表明,AHE和PMA的增强主要归因于Co/MgO界面化学态的有效控制。
Chemically manipulated anomalous Hall effect (AHE) and perpendicular magnetic anisotropy (PMA) have been studied in MgO/[Co/Pt]3/MgO multilayers by introducing a Mg metal layer between the Co layer and the top MgO layer. It is shown that the saturation anomalous Hall resistivity (ρAH) and effective magnetic anisotropy (Keff) are 125% and 26% larger than those in the multilayers without Mg insertion, respectively. The X-ray photoelectron spectroscopy (XPS) analysis shows that the enhancement of AHE and PMA is primarily ascribed to effective control of chemical states at the Co/MgO interface.
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