Unconventional plasmon-phonon coupling in graphene
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Jablan-2011-Unconventional plasm.pdf
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Author(s)
Jablan, Marinko
Soljacic, Marin
Buljan, Hrvoje
Date Issued
April 2011
Journal
Physical Review B
Publisher
American Physical Society
Citation
Jablan, Marinko, Marin Soljačić, and Hrvoje Buljan. “Unconventional Plasmon-phonon Coupling in Graphene.” Physical Review B 83.16 (2011) : 161409(R) ©2011 American Physical Society
Version
Final published version
Abstract
We predict the existence of coupled plasmon-phonon excitations in graphene by using the self-consistent linear response formalism. The unique electron-phonon interaction in graphene leads to unconventional mixing of plasmon and optical phonon polarizations. We find that longitudinal plasmons couple exclusively to transverse optical phonons, whereas graphene’s transverse plasmons couple only to longitudinal optical phonons. This coupling can serve as a magnifier for exploring the electron-phonon interaction in graphene, and it offers electronical control over phonon frequencies.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.83.161409
