Physics – Condensed Matter – Materials Science
Scientific paper
2011-09-28
Applied Physics Letters 99, 081904 (2011)
Physics
Condensed Matter
Materials Science
4 pages, 3 figures, Copyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any
Scientific paper
10.1063/1.3618674
Large scale, homogeneous quasi-free standing monolayer graphene is obtained on cubic silicon carbide, i.e. the 3C-SiC(111) surface, which represents an appealing and cost effective platform for graphene growth. The quasi-free monolayer is produced by intercalation of hydrogen under the interfacial, (6root3x6root3)R30-reconstructed carbon layer. After intercalation, angle resolved photoemission spectroscopy (ARPES) reveals sharp linear pi-bands. The decoupling of graphene from the substrate is identified by X-ray photoemission spectroscopy (XPS) and low energy electron diffraction (LEED). Atomic force microscopy (AFM) and low energy electron microscopy (LEEM) demonstrate that homogeneous monolayer domains extend over areas of hundreds of square-micrometers.
Chaussende Didier
Coletti Camilla
Emtsev Konstantin V.
Ouisse Thierry
Starke Ulrich
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