Electronic decoupling of an epitaxial graphene monolayer by gold intercalation
arXiv:1003.2355 · doi:10.1103/PhysRevB.81.235408
Abstract
The application of graphene in electronic devices requires large scale epitaxial growth. The presence of the substrate, however, usually reduces the charge carrier mobility considerably. We show that it is possible to decouple the partially sp3-hybridized first graphitic layer formed on the Si-terminated face of silicon carbide from the substrate by gold intercalation, leading to a completely sp2-hybridized graphene layer with improved electronic properties.
arXiv comment7 pages, 4 figures, 1 table
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