Experimental Realization of the Topologically Nontrivial Phase in Monolayer Si${}_2$Te${}_2$

Xiaochun Huang, Lingxiao Zhao, Rui Xiong +4

The free-standing monolayer Si${}_2$Te${}_2$ (ML-Si${}_2$Te${}_2$) has been theoretically predicted to host a room-temperature quantum spin Hall phase. However, its experimental realizatio…