Unconventional plasmon-phonon coupling in graphene

Jablan, Marinko and Soljačić, Marin and Buljan, Hrvoje (2011) Unconventional plasmon-phonon coupling in graphene. Physical Review B, 83 (16). 161409(R)-4. ISSN 1098-0121

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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.

Item Type: Article
Keywords: graphene, plasmons, phonons, coupling
Date: April 2011
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2011) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-0000000-1015
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 01 Jun 2014 19:49
Last Modified: 19 Apr 2016 18:22
URI: http://digre.pmf.unizg.hr/id/eprint/2072

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