Figure 4
From: Quantum valley Hall effect in wide-gap semiconductor SiC monolayer

DFT calculations for BN monolayer. (a) Bulk band structure. (b) Berry curvature map. The bright and dark spots correspond to positive and negative Berry curvature, respectively. b1 and b2 represent reciprocal lattice vectors. (c,d) Show the band structures of H-terminated 64-ZNR with a kink type domain wall. (c) Both edges consist of boron. (d) Both edges consist of nitrogen.