论文标题
Weyl半法线的运输,折射和界面弧
Transport, refraction and interface arcs in junctions of Weyl semimetals
论文作者
论文摘要
我们研究了跨两个磁性Weyl半法的连接的低能单电体转运,其中各向异性轴倾斜了一个。使用具有潜在步骤的两种波段模型,我们计算了正常和klein隧道的传输因子,以及界面的折射率随倾斜角的函数。我们表明该界面充当梁分离器,用不同的手势分离电子。我们还表征了界面状态,仅出现在有限的倾斜角度上,该角度将费米表面的投影连接在交界处的两侧,我们讨论了由于它们与费米弧的相互作用而引起的传输效应。
We study the low-energy single-electron transport across a junction of two magnetic Weyl semimetals, in which the anisotropy axes are tilted one respect to the other. Using a two-band model with a potential step, we compute the transmission factor for normal and Klein tunneling and the refraction properties of the interface as a function of the tilt angle. We show that the interface acts as a beam splitter, separating electrons with different chiralities. We also characterize interface states, only appearing for finite tilt angle, which connect the projection of the Fermi surfaces on the two sides of the junction, and we discuss transport effects due to their interplay with Fermi arcs.