Hybridization gap approaching the two-dimensional limit of topological insulator Bi${}_x$Sb${}_{1-x}$

Paul Corbae, Aaron N. Engel, Jason T. Dong +5

Bismuth antimony alloys (Bi${}_x$Sb${}_{1-x}$) provide a tuneable materials platform to study topological transport and spin-polarized surface states resulting from the nontrivial bulk…