title: Dirac cones and minigaps for graphene on Ir(111).
abstract: Epitaxial graphene on Ir(111) prepared in excellent structural quality is investigated by angle-resolved photoelectron spectroscopy. It clearly displays a Dirac cone with the Dirac point shifted only slightly above the Fermi level. The moiré resulting from the overlaid graphene and Ir(111) surface lattices imposes a superperiodic potential giving rise to Dirac cone replicas and the opening of minigaps in the band structure.
authors.affiliation: Institut za fiziku, Bijenicka 46, 10000 Zagreb, Croatia.
authors.forename: I
authors.initials: I
authors.lastname: Pletikosić
authors.forename: M
authors.initials: M
authors.lastname: Kralj
authors.forename: P
authors.initials: P
authors.lastname: Pervan
authors.forename: R
authors.initials: R
authors.lastname: Brako
authors.forename: J
authors.initials: J
authors.lastname: Coraux
authors.forename: A T
authors.initials: AT
authors.lastname: N'diaye
authors.forename: C
authors.initials: C
authors.lastname: Busse
authors.forename: T
authors.initials: T
authors.lastname: Michely