Physics – Condensed Matter – Materials Science
Scientific paper
2011-06-28
Phys. Rev. B 81, 241417(R) (2010)
Physics
Condensed Matter
Materials Science
http://link.aps.org/doi/10.1103/PhysRevB.81.241417
Scientific paper
10.1103/PhysRevB.81.241417
The electronic band structure of as-grown and doped graphene grown on the carbon face of SiC is studied by high-resolution angle-resolved photoemission spectroscopy, where we observe both rotations between adjacent layers and AB-stacking. The band structure of quasi-freestanding AB- bilayers is directly compared with bilayer graphene grown on the Si-face of SiC to study the impact of the substrate on the electronic properties of epitaxial graphene. Our results show that the C-face films are nearly freestanding from an electronic point of view, due to the rotations between graphene layers.
Fedorov Alexei V.
Hwang Choongyu
Lanzara Alessandra
Siegel David A.
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