First direct observation of a nearly ideal graphene band structure

Autor:	Sprinkle, M., Siegel, D., Hu, Y., Hicks, J., Soukiassian, P., Tejeda, A., Taleb-Ibrahimi, A., Fèvre, P. Le, Bertran, F., Berger, C., de Heer, W. A., Lanzara, A., Conrad, E. H.
Rok vydání:	2009
Předmět:	Condensed Matter - Materials Science Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.103.226803
Popis:	Angle-resolved photoemission and X-ray diffraction experiments show that multilayer epitaxial graphene grown on the SiC(000-1) surface is a new form of carbon that is composed of effectively isolated graphene sheets. The unique rotational stacking of these films cause 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 macro-scale graphene sheet in a multilayer stack where AB-stacked sheets can be considered as low density faults. Comment: 5 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0907.5222 Zobrazit plný text záznamu View this record from Arxiv