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Localised magneto-optical collective excitations of impure graphene
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Fischer, Andrea M., Dzyubenko, Alexander B. and Roemer, Rudolf A. (2009) Localised magneto-optical collective excitations of impure graphene. Annalen der Physik, Vol.18 (No.12 Sp. Iss. SI). pp. 944-948. doi:10.1002/andp.200910381 ISSN 0003-3804.
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Official URL: http://dx.doi.org/10.1002/andp.200910381
Abstract
We study optically-induced collective excitations of graphene in the presence of a strong perpendicular magnetic field and a single impurity. We determine the energies and absorption strengths of these excitations, which become localised on the impurity. Two different types of impurity are considered i. the long-range Coulomb impurity, ii. a delta-function impurity located at either an A or B graphene sublattice site. Both impurity types result in some bound states appearing both above and below the magnetoplasmon continuum, although the effect of the short-range impurity is less pronounced. The dependence of the energies and oscillator strengths of the bound states on the filling factor is investigated. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Other > Institute of Advanced Study Faculty of Science, Engineering and Medicine > Science > Physics Faculty of Science, Engineering and Medicine > Science > Centre for Scientific Computing |
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| Library of Congress Subject Headings (LCSH): | Magnetooptics, Graphene, Plasmons (Physics), Collective excitations | ||||
| Journal or Publication Title: | Annalen der Physik | ||||
| Publisher: | Wiley - VCH Verlag GmbH & Co. KGaA | ||||
| ISSN: | 0003-3804 | ||||
| Official Date: | December 2009 | ||||
| Dates: |
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| Volume: | Vol.18 | ||||
| Number: | No.12 Sp. Iss. SI | ||||
| Number of Pages: | 5 | ||||
| Page Range: | pp. 944-948 | ||||
| DOI: | 10.1002/andp.200910381 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Conference Paper Type: | Paper | ||||
| Type of Event: | Conference |
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