论文标题
肮脏的狄拉克材料中的费米弧和表面关键性
Fermi arcs and surface criticality in dirty Dirac materials
论文作者
论文摘要
我们研究了障碍对半侵犯Weyl和Dirac半法的影响，其中边界的存在导致形成Fermi Arcs/Rays或Dirac表面状态。使用自洽天生近似的本地版本，我们计算状态的局部密度和表面组速度的曲线。这使我们能够探索全相图作为边界条件和无序强度的函数。尽管在所有情况下，我们都会恢复整体中的尖锐临界性，但我们在狄拉克半法的表面上揭示了临界行为，这是Weyl Semimetals中Fermi Arc平滑的。
We study the effects of disorder on semi-infinite Weyl and Dirac semimetals where the presence of a boundary leads to the formation of either Fermi arcs/rays or Dirac surface states. Using a local version of the self-consistent Born approximation, we calculate the profile of the local density of states and the surface group velocity. This allows us to explore the full phase diagram as a function of boundary conditions and disorder strength. While in all cases we recover the sharp criticality in the bulk, we unveil a critical behavior at the surface of Dirac semimetals, which is smoothed out by Fermi arcs in Weyl semimetals.
