Two-dimensional topological insulators with large bulk energy gap

Yang Z Q^{1, 2}, Jia Jin-Feng^{1, 2}, Qian Dong^{1, 2, †,}

Crystal and electronic structures of OT-Bi, from Ref. [12]. (a) Bird’s-eye and side views of OT-Bi single-layer. (b) Bulk electronic bands and the Dirac-cone-like 1D edge state in the OT-Bi nanoribbon.