Silicon-Carbon Bond Inversions Driven by 60-keV Electrons in Graphene

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dc.authorid0000-0001-6739-4348
dc.authorid0000-0003-4023-0778
dc.authorid0000-0002-5851-6638
dc.authorid0000-0003-2513-573X
dc.authorid0000-0002-1301-5266
dc.authorid0000-0001-7466-2283
dc.contributor.authorSusi, Toma
dc.contributor.authorKotakoski, Jani
dc.contributor.authorKepaptsoglou, Demie
dc.contributor.authorMangler, Clemens
dc.contributor.authorLovejoy, Tracy C.
dc.contributor.authorKrivanek, Ondrej L.
dc.contributor.authorRamasse, Quentin
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2014
dc.departmentNiğde ÖHÜ
dc.description.abstractWe demonstrate that 60-keV electron irradiation drives the diffusion of threefold-coordinated Si dopants in graphene by one lattice site at a time. First principles simulations reveal that each step is caused by an electron impact on a C atom next to the dopant. Although the atomic motion happens below our experimental time resolution, stochastic analysis of 38 such lattice jumps reveals a probability for their occurrence in a good agreement with the simulations. Conversions from three- to fourfold coordinated dopant structures and the subsequent reverse process are significantly less likely than the direct bond inversion. Our results thus provide a model of nondestructive and atomically precise structural modification and detection for two-dimensional materials.
dc.description.sponsorshipVienna Scientific Cluster; CSC Finland Ltd.; Austrian Science Fund (FWF) [M 1497-N19]; Finnish Cultural Foundation; Walter Ahlstrom Foundation; FWF [M 1481-N20, P25721-N20]; University of Helsinki Funds; European Research Council (ERC) [336453-PICOMAT]; Engineering and Physical Sciences Research Council (EPSRC) [EP/I008144/1]; Engineering and Physical Sciences Research Council [EP/I008144/1]
dc.description.sponsorshipWe thank the Vienna Scientific Cluster and CSC Finland Ltd. for extensive grants of computational resources, and Ask Hjorth Larsen for help setting up the LCAO calculations. T. S. was supported by the Austrian Science Fund (FWF) through Grant No. M 1497-N19, by the Finnish Cultural Foundation, and by the Walter Ahlstrom Foundation. J. K. was supported by the FWF via Grant No. M 1481-N20, and by the University of Helsinki Funds. J. C. M. and C. M. acknowledge support from the FWF Project No. P25721-N20 and the European Research Council (ERC) Project No. 336453-PICOMAT. SuperSTEM is the UK National Facility for Aberration-Corrected STEM, supported by the Engineering and Physical Sciences Research Council (EPSRC), who also supported R. Z. and U. B. via Grant No. EP/I008144/1.
dc.identifier.doi10.1103/PhysRevLett.113.115501
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue11
dc.identifier.pmid25259987
dc.identifier.scopus2-s2.0-84925047460
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://dx.doi.org/10.1103/PhysRevLett.113.115501
dc.identifier.urihttps://hdl.handle.net/11480/4122
dc.identifier.volume113
dc.identifier.wosWOS:000341914100007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherAMER PHYSICAL SOC
dc.relation.ispartofPHYSICAL REVIEW LETTERS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleSilicon-Carbon Bond Inversions Driven by 60-keV Electrons in Graphene
dc.typeArticle

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