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

Znanstveni rad - Izvorni znanstveni rad

• Autor: Vito Despoja
• Autor: Marijan Šunjić
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

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.

• Ključne riječi (engleski): core hole spectra; graphene; ab initio
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical review B: Condensed matter and materials physics
• Brojčani podaci: vol. 88, br. 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
• Datum objave publikacije: 2013
• URL dokumenta: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.245416
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Copyright (2013) by the American Physical Society. Received 27 October 2013; published 11 December 2013.
• Datum i vrijeme pohrane: 2019-11-27 16:26:08