Fig. 3From: Spin- and Valley-Dependent Electronic Structure in Silicene Under Periodic PotentialsNumber of Dirac points N D versus potential U. (a) h=8.0 meV and Δ z = 7.8 meV; (b) h = 20.0 meV and Δ z = 7.8 meV; (c) h = 8.0 meV and Δ z =15.0 meVBack to article page