Fig. 4: SWI in d-CH and s-CH honeycomb monolayer.
From: Two-dimensional Stiefel-Whitney insulators in liganded Xenes
a–c correspond to results for d-CH and d–f correspond to results for s-CH. a, d Band structure of a nanoribbon of hydrogenated graphene with (gray) and without (blue and red) hydrogen saturation. The flat edge bands are marked in red. b, e The energy spectrum of a hexagonal-shaped nanodisk with H-saturated edges. c, f Top and side view of the real-space charge distribution of corner states around the Fermi level.
