Figure 1
(a) Top view of the schematic representation of a bilayer graphene superlattice created by a periodic arrangement of top gate (TG) electrodes. Bilayer graphene, blue and red lattices, is typically placed on a non interacting substrate like SiO2 and a back gate not see from top view. (b) The resulting band-edge profile of (a), which is a periodic energy potential profile. The main effect of the electrostatic potential applied through TGs is a shifting of the Dirac paraboloids, paraboloids in the shaded area, proportional to the electrostatic field strength.
