Journal article ยท Preprint article
Plasmons in Dimensionally Mismatched Coulomb Coupled Graphene Systems
We calculate the plasmon dispersion relation for Coulomb coupled metallic armchair graphene nanoribbons and doped monolayer graphene. The crossing of the plasmon curves, which occurs for uncoupled 1D and 2D systems, is split by the interlayer Coulomb coupling into a lower and an upper plasmon branch.
The upper branch exhibits an unusual behavior with end points at finite q. Accordingly, the structure factor shows either a single or a double peak behavior, depending on the plasmon wavelength. The new plasmon structure is relevant to recent experiments, its properties can be controlled by varying the system parameters and be used in plasmonic applications.
Language: | English |
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Year: | 2017 |
Pages: | 126801 |
ISSN: | 10797114 and 00319007 |
Types: | Journal article and Preprint article |
DOI: | 10.1103/PhysRevLett.119.126801 |
ORCIDs: | Badalyan, S. M. and Jauho, Antti-Pekka |