Probing the Plasmon-Phonon Hybridization in Supported Graphene by Externally Moving Charged Particles
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- 作者：Tijana Marinkovi? ; Ivan Radovi? ; Du?ko Borka ; Zoran L. Mi?kovi?
- 关键词：Graphene ; Plasmon ; phonon hybridization ; Wake effect ; Stopping force ; Image force
- 刊名：Plasmonics
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：10
- 期：6
- 页码：1741-1749
- 全文大小：1,884 KB
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Ivan Radovi? (1)
Du?ko Borka (1)
Zoran L. Mi?kovi? (2) (3)
1. Vin?a Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001, Belgrade, Serbia
2. Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
3. Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Biotechnology
Nanotechnology
Biophysics and Biomedical Physics
Biochemistry - 出版者：Springer US
- ISSN：1557-1963
文摘
We use the dielectric response formalism to show how an incident charged particle may be used to probe the hybridization taking place between the Dirac plasmon in graphene and the surface optical phonon modes in a SiO2 substrate. Strong effects of this hybridization are found in the wake pattern in the induced potential, as well as in the stopping and image forces that act on the incident charge in a broad range of its velocities. Particularly intriguing is the possibility to control the plasmon-phonon hybridization by varying the doping density of graphene, where the regime of a nominally neutral graphene is expected to give rise to dramatic effects in the energy loss of charged particles that move at the velocities below the Fermi velocity of graphene. Keywords Graphene Plasmon-phonon hybridization Wake effect Stopping force Image force