This article is cited in 4 papers

CONDENSED MATTER

On the dispersion relation of plasmons in a gapless-graphene-based superlattice with alternating Fermi velocity

P. V. Ratnikov

Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russia

Abstract: A graphene-based superlattice formed owing to the periodic modulation of the Fermi velocity is considered. Such a modulation is possible in graphene deposited on a strip substrate of materials with significantly different static dielectric constants. The dispersion relation for plasmons has been derived for this system in the case where the Fermi level lies in the low miniband. The problem of absorption of modulated external electromagnetic radiation because of the excitation of plasmons has been discussed.

Received: 09.10.2017
Revised: 15.11.2017

DOI: 10.7868/S0370274X17240109

 English version: Journal of Experimental and Theoretical Physics Letters, 2017, 106:12, 810–814

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