Characterization of graphene through anisotropy of constant-energy maps in angle-resolved photoemission

Details Characterization of graphene through anisotropy of constant-energy maps in angle-resolved photoemission Characterization of graphene through anisotropy of constant-energy maps in angle-resolved photoemission

2007-11-07

arxiv.org/abs/0711.1129v2

Phys. Rev. B 77, 195403 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 9 figures; improvements made to Fig. 7 and the text

Scientific paper

10.1103/PhysRevB.77.195403

We show theoretically how constant-energy maps of the angle-resolved photoemission intensity can be used to test wave function symmetry in graphene. For monolayer graphene, we demonstrate that the observed anisotropy of ARPES spectra is a manifestation of what has been recently branded as electronic chirality. For bilayer graphene, we show that the anisotropy of the constant-energy maps may be used to extract information about the magnitude and sign of interlayer coupling parameters and about symmetry breaking inflicted on a bilayer by the underlying substrate.

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