Dirac Cones and Minigaps for Graphene on Ir(111)
- 6 February 2009
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 102 (5), 056808
- https://doi.org/10.1103/physrevlett.102.056808
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.Keywords
Other Versions
This publication has 31 references indexed in Scilit:
- The electronic properties of grapheneReviews of Modern Physics, 2009
- Temperature-Dependent Transport in Suspended GraphenePhysical Review Letters, 2008
- Origin of the energy bandgap in epitaxial grapheneNature Materials, 2008
- Origin of the energy bandgap in epitaxial grapheneNature Materials, 2008
- Symmetry breaking in few layer graphene filmsNew Journal of Physics, 2007
- The rise of grapheneNature Materials, 2007
- Quasiparticle dynamics in grapheneNature Physics, 2006
- Controlling the Electronic Structure of Bilayer GrapheneScience, 2006
- Electronic Confinement and Coherence in Patterned Epitaxial GrapheneScience, 2006
- Electric Field Effect in Atomically Thin Carbon FilmsScience, 2004