Figure 1
From: Quantum anomalous Hall and quantum spin-Hall phases in flattened Bi and Sb bilayers
The lattice geometry for Bi and Sb based structure.
Atomic structure of two-dimensional single Bi (111) and Sb (111) bilayers (a) without and (b) with adatom deposition. Blue balls denote Bi or Sb and white balls the chemicals (H, F or N).
