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

Scientific paper - Original scientific paper

• Author: Vito Despoja
• Author: Marijan Šunjić
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

Spectra 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.

• Keywords (english): core hole spectra; graphene; ab initio
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical review B: Condensed matter and materials physics
• Numbering: vol. 88, no. 24, 245416
• p-ISSN: 1098-0121
• e-ISSN: 1550-235X
• DOI: https://doi.org/10.1103/PhysRevB.88.245416
• URN:NBN: urn:nbn:hr:217:361792
• Publication: 2013
• Document URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.245416
• Type of resource: Text
• Access conditions: Open access
• Public note: Copyright (2013) by the American Physical Society. Received 27 October 2013; published 11 December 2013.
• Created on: 2019-11-27 16:26:08