First direct observation of a nearly ideal graphene band structure
Journal Article
·
· Phys. Rev. Lett.
Angle-resolved photoemission and x-ray diffraction experiments show that multilayer epitaxial graphene grown on the SiC(000{bar 1}) surface is a new form of carbon that is composed of effectively isolated graphene sheets. The unique rotational stacking of these films causes adjacent graphene layers to electronically decouple leading to a set of nearly independent linearly dispersing bands (Dirac cones) at the graphene K point. Each cone corresponds to an individual macroscale graphene sheet in a multilayer stack where AB-stacked sheets can be considered as low density faults.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1005997
- Journal Information:
- Phys. Rev. Lett., Vol. 103, Issue (22) ; 11, 2009; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- ENGLISH
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