Evidence of Higher Order Topology in Multilayer WTe${}_2$ from Josephson Coupling through Anisotropic Hinge States

Yong-Bin Choi, Yingming Xie, Chui-Zhen Chen +12

The noncentrosymmetric Td-WTe${}_2$, previously known as a type-II Weyl semimetal, is expected to have higher order topological phases with topologically protected, helical one-dimen…