Fig. 4From: Spin- and Valley-Dependent Electronic Structure in Silicene Under Periodic Potentials(a) Minibands near Fermi level and (b) their band gaps at original Dirac point versus potential U, at d b =d w =50 nm. (c) Minibands near Fermi level and (d) their band gaps at original Dirac point versus d b , at U=0 and d w =50 nm. The values of other parameters are h=8.0 meV, Δ z =15.0 meV, and k x =k y =0Back to article page