Journal
PHYSICAL REVIEW LETTERS
Volume 102, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.056808
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Funding
- Ministry of Science, Education and Sports of the Republic of Croatia [035-0352828-2840, 098-03528282836]
- DFG
- AvH Foundation
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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 moire 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.
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