Symmetry breaking in few layer graphene films

By A. Bostwick, T. Ohta, J. McChesney, K. Emtsev, T. Seyller, K. Horn, Eli Rotenberg. 2007

147 citations recorded by the source corpus.

Recently, it was demonstrated that the quasiparticle dynamics, the layer-dependent charge and potential, and the c-axis screening coefficient could be extracted from measurements of the spectral function of few layer graphene films grown epitaxially on SiC using angle-resolved photoemission spectroscopy (ARPES). In this paper we review these findings, and present detailed methodology for extracting such parameters from ARPES. We also present detailed arguments against the possibility of an energy gap at the Dirac crossing ED.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/713b0de3604fe314fb409509eed356ca8b43153c

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. A. Bostwick
2. A. Mahmood
3. C. Soldano
4. E. Dujardin
5. L. Zou
6. Yasodinee Wimalasiri

In Materials Chemistry

1. Olga Kazakova
2. A. Bostwick
3. A. Mahmood
4. C. Soldano
5. C. Melios
6. V. Panchal
7. C. Giusca
8. E. Dujardin

Citations in the corpus

• Production, properties and potential of graphene (2010, background): “[31] Bostwick A, Ohta T, McChesney JL, Emtsev KV, Seyller T, Horn K, et al.”
• Water on graphene: review of recent progress (2018, background): “Moreover, in the case of as-grown epitaxial AB-stacked 2LG on SiC(0 0 0 1), symmetry breaking due to difference in charge density between the top (largely exposed to p-type doping from environment) and bottom (largely exposed to n-type doping from substrate) layers can induce a small bandgap, howeve”
• The formation of an energy gap in graphene on ruthenium by controlling the interface (2010, background): “Thus, we propose that the band gap in the 1 ML graphene/Au/Ru(0001) system results from a symmetry breaking of the two carbon sublattices in the graphene layer, which results in a weak breaking of the chiral symmetry, inducing a weak but finite intensity of the left band along the 0–K direction, bet”