Plasmon-mediated Coulomb drag between graphene waveguides

Artsem A. Shylau, Antti-Pekka Jauho

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Abstract

We analyze theoretically charge transport in Coulomb coupled graphene waveguides (GWGs). The GWGs are defined using antidot lattices, and the lateral geometry bypasses many technological challenges of earlier designs. The drag resistivity ρD, which is a measure of the many-particle interactions between the GWGs, is computed for a range of temperatures and waveguide separations. It is demonstrated that for T>0.1TF the drag is significantly enhanced due to plasmons, and that in the low-temperature regime a complicated behavior may occur. In the weak coupling regime the dependence of drag on the interwaveguide separation d follows ρDd−n, where n≃6.

Original languageEnglish
JournalPhysical Review B
Volume89
Issue number16
Pages (from-to)165421
Number of pages6
ISSN0163-1829
DOIs
Publication statusPublished - 2014

Bibliographical note

©2014 American Physical Society

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