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dc.creatorRadović, Ivan
dc.creatorBorka, Duško
dc.date.accessioned2018-03-01T21:21:38Z
dc.date.available2018-03-01T21:21:38Z
dc.date.issued2010
dc.identifier.issn0168-583X (print)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/4095
dc.description.abstractWe study the interactions of fast charged particles with a two-dimensional electron gas supported by an insulating substrate, describing its high-frequency plasmon excitations by a two-fluid hydrodynamic model with the parameters characteristic of graphene. The induced number density per unit area of electrons in the two-dimensional electron gas and the total electric potential in its plane are derived as functions of the projectile velocity and the particle position We show that, when the speed of the particle moving parallel to the two-dimensional electron gas exceeds a threshold value for the collective excitations of a and pi electrons, the oscillatory wake effect develops both in the induced number density and in the total electric potential trailing the particle When the particle speed matches the phase velocity of the quasiacoustic pi plasmon, the induced number density shows usual wake oscillations, in contrast to the single-walled carbon nanotubes where oscillations precede the position of the particle (C) 2010 Elsevier B.V All rights reserveden
dc.relationMinistry of Science and Technological Development of the Republic of Serbia [141013]
dc.rightsrestrictedAccessen
dc.sourceNuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atomsen
dc.subject2D electron gasen
dc.subjectGrapheneen
dc.subjectPlasmon excitationen
dc.subjectWake effecten
dc.titleWake effect in interactions of fast ions with supported two-dimensional electron gasen
dc.typearticleen
dcterms.abstractРадовић Иван; Борка Душко;
dc.citation.volume268
dc.citation.issue17-18
dc.citation.spage2649
dc.citation.epage2654
dc.identifier.wos000281498900014
dc.identifier.doi10.1016/j.nimb.2010.06.043
dc.citation.rankM22
dc.identifier.scopus2-s2.0-77955511567


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