Weyl半金属中的Andreev反射
Andreev Reflection in Weyl Semimetals
摘要：
本文从理论上研究了外尔半金属与金属超导体结中的低能电输运。微分电导的特征取决于电流和连接两个外尔点的矢量之间的相对方向。当电流垂直于矢量时，电导谱对结界面处磁矩的方向和幅值敏感。这是外尔点附近费米面上手征自旋组态的直接结果。
英文摘要：
We theoretically study low energy electric transport in a junction consisting of a Weyl semimetal and a metallic superconductor. The characteristic features of the differential conductance depend on the relative directions between the current and the vector connecting the two Weyl points. When the electric current is perpendicular to the vector, the conductance spectra are sensitive to the direction and the amplitude of magnetic moment at the junction interface. This is a direct consequence of the chiral spin configuration on the fermi surface near the Weyl points.
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