dc.creator | Politano, Antonio | |
dc.creator | Radović, Ivan | |
dc.creator | Borka, Duško | |
dc.creator | Mišković, Zoran L. | |
dc.creator | Yu, H. K. | |
dc.creator | Farias, D. | |
dc.creator | Chiarello, G. | |
dc.date.accessioned | 2018-03-01T17:23:35Z | |
dc.date.available | 2018-03-01T17:23:35Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0008-6223 | |
dc.identifier.issn | 1873-3891 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/1414 | |
dc.description.abstract | By means of angle-resolved electron energy loss spectroscopy, we have measured the interband it plasmon in high-quality graphene grown on peeled-off epitaxial Cu(111) foils. Experimental loss spectra have been reproduced by means of a hydrodynamic model. The dispersion relation of the plasmon frequency shows a nearly-flat dispersion up to a critical wave-vector of 0.3 angstrom(-1). We propose that the observed behavior could be originated by confinement effects in ripples in the strained graphene sheet. Strain also limits the dispersion at higher momenta, as a consequence of the increased effective mass of charge carriers. The analysis of momentum dependence of the line-width and of the inverse quality factor indicates that damping processes are dominated by decay in electron-hole pairs via indirect interband transitions. (C) 2016 Elsevier Ltd. All rights reserved. | en |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45005/RS// | |
dc.relation | COST Action [MP1306] | |
dc.relation | Natural Sciences and Engineering Research Council of Canada [249506-2011] | |
dc.relation | Spanish MINECO [MAT2015-65356-C3-3-R] | |
dc.relation | Spanish MINECO through the Maria de Maeztu Programme for Units of Excellence in RD [MDM-2014-0377] | |
dc.rights | restrictedAccess | en |
dc.source | Carbon | en |
dc.title | Dispersion and damping of the interband pi plasmon in graphene grown on Cu(111) foils | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Yу, Х. К.; Политано, A.; Цхиарелло, Г.; Радовић Иван; Мисковиц, З. Л.; Борка Душко; Фариас, Д.; | |
dc.citation.volume | 114 | |
dc.citation.spage | 70 | |
dc.citation.epage | 76 | |
dc.identifier.wos | 000393249600009 | |
dc.identifier.doi | 10.1016/j.carbon.2016.11.073 | |
dc.citation.rank | M21 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85003554341 | |