Figure 4

Band structure of the Pb/Gr/SiC(000\(\bar{1}\)) and Gr/Pb/SiC(000\(\bar{1}\)) (C-terminated SiC substrate) system (grey lines). The band structures projected onto the atoms in graphene (blue), plumbene layer (red) as well as the C (orange) and Si (green) atoms in the SiC substrate are indicated by different colors. To represent an atomic species the sum over the s, p and, when present, d orbitals is taken. The Fermi level is used as energy zero.