论文标题
可调界面态在floquet-weyl半学之间
Tunable interface states between Floquet-Weyl semimetals
论文作者
论文摘要
Weyl半学和节点线半法的特征是线性电子带分别在零维点和一维线处接触。最近，已经预测，节点线半学可以通过圆形极化光线驱动到可调的浮标 - 韦尔半学。在这里，我们研究了鼻线半光片的两个区域之间的界面状态的发生，这些区域由两条光束光束发光，并具有相反的圆极化。在最小的模型中，我们通过调整偏振光（例如范霍夫奇异性的可能产生）来发现能量结构的显着修改。此外，通过沿界面平面添加$δ$的磁杂质参数，我们显示了界面状态的可切换和拓扑性和拓扑性涡流状的伪造型旋转图案的出现。
Weyl semimetals and nodal line semimetals are characterized by linear electronic bands touching at zero-dimensional points and one-dimensional lines, respectively. Recently, it has been predicted that nodal line semimetals can be driven into tunable Floquet-Weyl semimetals by circularly polarized light. Here, we study the occurrence of interface states between two regions of a nodal line semimetal shined by two beams of light with opposite circular polarizations. Within a minimal model, we find remarkable modifications of the energy structure by tuning the polarized light, such as the possible generation of van Hove singularities. Moreover, by adding a $δ$-doping of magnetic impurities along the interfacial plane, we show the occurrence of a switchable and topologically non-trivial, vortex-like pseudo-spin pattern of the interface states.
