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Why Multilayer Graphene on 4H-SiC(000-1) Behaves Like a Single Sheet of Graphene

Journal Article · · Phys. Rev. Lett.

We show experimentally that multilayer graphene grown on the carbon terminated SiC(000{ovr 1}) surface contains rotational stacking faults related to the epitaxial condition at the graphene-SiC interface. Via first-principles calculation, we demonstrate that such faults produce an electronic structure indistinguishable from an isolated single graphene sheet in the vicinity of the Dirac point. This explains prior experimental results that showed single-layer electronic properties, even for epitaxial graphene films tens of layers thick.

Research Organization:
Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
Sponsoring Organization:
USDOE
OSTI ID:
1006560
Journal Information:
Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 03, 2008 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
ENGLISH

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