论文标题
淋巴结空位结合状态和三维WEYL半关系的共振
Nodal vacancy bound states and resonances in three-dimensional Weyl semimetals
论文作者
论文摘要
在存在原子大小的空置缺陷的情况下，分析了立方$ \ MATHCAL {T} $ - 对称Weyl Semimetal的电子结构。孤立的空缺被证明可以用$ r^{\ scriptscriptstyle -2} $渐近尾巴产生淋巴结绑定状态，即使浸入了弱失调的环境中。这些状态显示为状态的显着增强的淋巴结密度，随着缺陷的浓度的增加，将其重塑为淋巴结峰，该峰通过易变间杂交扩大到有限能量的卫星谐振中。我们的结果将点缺陷作为弹性散射的关键来源，从而导致Weyl半法的电子结构进行非平凡的修饰。
The electronic structure of a cubic $\mathcal{T}$-symmetric Weyl semimetal is analysed in the presence of atomic-sized vacancy defects. Isolated vacancies are shown to generate nodal bound states with $r^{\scriptscriptstyle -2}$ 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.
