Effect of gold intercalation on the electronic structure of graphene on Co-Si/SiC(0001)

Graphene grown on an ultrathin CoSi/CoSi 2 silicide layer atop a SiC(0001) substrate and intercalated by Au was studied. Intercalation of found to occur at temperature 500 o C, it is accompanied the formation gold under graphene with stoichiometry close Si. The study electronic structure system in region (K) point surface Brillouin zone revealed quasi-freestanding character linear spectrum π states Dirac near Fermi level. Photoelectron microscopy homogeneity work function along sample micrometer scale. Keywords: Graphene, magneto-spin-orbit graphene, intercalation, photoelectron spectroscopy, structure.