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Andreev spectroscopy of the triplet-superconductor state in the Bi/Ni bilayer system

机译:Bi / Ni双层系统中的三重超导状态的Andreev光谱学

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摘要

We calculate the Andreev spectroscopy between a ferromagnetic lead and a Bi/Ni bilayer system. The bilayer system is described by the Anderson-Brinkman-Morel (ABM) state and mixing ABM and S-wave states. In both the ABM state and ABM state is mixed with small S-wave state, the Andreev conductance is consistent with that obtained in the point-contact experiment [Zhao et al., arXiv: 1810.10403]. Moreover, the conductance peak near zero energy is induced by the surface state of the ABM state. Our work may provide helpful clarification for understanding recent experiments.
机译:我们计算铁磁引线和BI / Ni双层系统之间的Andreev光谱。双层系统由Anderson-Brinkman-Morel(ABM)状态和混合ABM和S波状态描述。在ABM状态和ABM状态下,与小S波状态混合,ANDREEV电导与点接触实验中获得的ANDREEV电导一致[Zhao等,Arxiv:1810.10403]。此外,通过ABM状态的表面状态引起零能量附近的电导峰。我们的工作可能会提供有用的澄清,以了解最近的实验。

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  • 来源
    《Physical review》 |2020年第17期|174514.1-174514.9|共9页
  • 作者

    Xin Shang; Haiwen Liu; Ke Xia;

  • 作者单位

    Department of Physics Beijing Normal University Beijing 100875 China The Center for Advanced Quantum Studies Beijing Normal University Beijing 100875 China;

    Department of Physics Beijing Normal University Beijing 100875 China The Center for Advanced Quantum Studies Beijing Normal University Beijing 100875 China;

    The Center for Advanced Quantum Studies Beijing Normal University Beijing 100875 China Beijing Computational Science Research Center Beijing 100193 China;

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