Quasi-one-dimensional topological band structure and van Hove singularities in monolayer TaIrTe${}_4$ from laser $\mu$-ARPES

Honey Boban, Tanguy Prongué, Amarjyoti Choudhury +9

Recent transport experiments reported a quantum spin Hall insulator phase in monolayer 1T-TaIrTe${}_4$ gated away from charge neutrality. This phase is not predicted by band structur…