Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6312
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dc.contributor.authorAltıntaş, Abdulmenaf-
dc.contributor.authorÇakmak, K. E.-
dc.contributor.authorGüçlü, Alev Devrim-
dc.date.accessioned2017-10-04T13:44:02Z-
dc.date.available2017-10-04T13:44:02Z-
dc.date.issued2017-01-
dc.identifier.citationAltıntaş, A., Çakmak, K. E., and Güçlü, A. D. (2017). Effects of long-range disorder and electronic interactions on the optical properties of graphene quantum dots. Physical Review B, 95(4). doi:10.1103/PhysRevB.95.045431en_US
dc.identifier.issn2469-9950-
dc.identifier.issn2469-9969-
dc.identifier.urihttp://doi.org/10.1103/PhysRevB.95.045431-
dc.identifier.urihttp://hdl.handle.net/11147/6312-
dc.description.abstractWe theoretically investigate the effects of long-range disorder and electron-electron interactions on the optical properties of hexagonal armchair graphene quantum dots consisting of up to 10 806 atoms. The numerical calculations are performed using a combination of tight-binding, mean-field Hubbard, and configuration interaction methods. Imperfections in the graphene quantum dots are modeled as a long-range random potential landscape, giving rise to electron-hole puddles. We show that, when the electron-hole puddles are present, the tight-binding method gives a poor description of the low-energy absorption spectra compared to mean-field and configuration interaction calculation results. As the size of the graphene quantum dot is increased, the universal optical conductivity limit can be observed in the absorption spectrum. When disorder is present, the calculated absorption spectrum approaches the experimental results for isolated monolayers of graphene sheets.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Ben_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectGrapheneen_US
dc.subjectQuantum dotsen_US
dc.subjectElectronic interactionsen_US
dc.titleEffects of long-range disorder and electronic interactions on the optical properties of graphene quantum dotsen_US
dc.typeArticleen_US
dc.authoridTR204916en_US
dc.authoridTR119803en_US
dc.institutionauthorAltıntaş, Abdulmenaf-
dc.institutionauthorÇakmak, K. E.-
dc.institutionauthorGüçlü, Alev Devrim-
dc.departmentİzmir Institute of Technology. Physicsen_US
dc.identifier.volume95en_US
dc.identifier.issue4en_US
dc.identifier.wosWOS:000402173500004en_US
dc.identifier.scopus2-s2.0-85012306170en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1103/PhysRevB.95.045431-
dc.relation.doi10.1103/PhysRevB.95.045431en_US
dc.coverage.doi10.1103/PhysRevB.95.045431en_US
dc.identifier.wosqualityQ2-
dc.identifier.scopusqualityQ2-
item.grantfulltextopen-
item.openairetypeArticle-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.dept04.05. Department of Pyhsics-
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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