Nodal vacancy bound states and resonances in three-dimensional Weyl semimetals
arXiv:2205.05108 · doi:10.1103/PhysRevB.106.184201
Abstract
The electronic structure of a cubic -symmetric Weyl semimetal is analysed in the presence of atomic-sized vacancy defects. Isolated vacancies are shown to generate nodal bound states with asymptotic tails, even when immersed in a weakly disordered environment. These states show up as a significantly enhanced nodal density of states which, as the concentration of defects is increased, reshapes into a nodal peak that is broadened by inter-vacancy hybridisation into a comb of satellite resonances at finite energies. Our results establish point defects as a crucial source of elastic scattering that leads to nontrivial modifications in the electronic structure of Weyl semimetals.
11 pages, 10 figures. Title Change and Text Adaptation Relative to V3
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