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

Research output: Contribution to journalJournal article

<mark>Journal publication date</mark>15/05/2008
<mark>Journal</mark>Physical Review B
Issue number19
Number of pages0
Pages (from-to)195403
<mark>Original language</mark>English


We theoretically show 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 angle-resolved photoelectron spectroscopy spectra is a manifestation of what has been recently branded as an 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.