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Theory of core-level spectra in x-ray photoemission of pristine and doped graphene

AuthorsDespoja, Vito ; Šunjić, Marijan
Issue Date2013
PublisherAmerican Physical Society
CitationPhysical Review B 88: 245416 (2013)
AbstractSpectra of the C1s core hole, created in x-ray photoemission and screened by electronic excitations in pristine and doped graphene are calculated and discussed. We find that singular effects in the lineshapes are not possible in the pristine graphene, and their observation should be connected with the doping. However, the structure of the low-energy excitation spectrum in the region where the singular behavior is expected leads to asymmetries in the core-hole lineshapes in pristine graphene similar to those in doped graphene. This makes the analysis more complex than in the case of metals and may lead to an incorrect or incomplete interpretation of the experimental results. © 2013 American Physical Society.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.88.245416
Identifiersdoi: 10.1103/PhysRevB.88.245416
issn: 1098-0121
e-issn: 1550-235X
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