Charge density and conductivity of disordered Berry-Mondragon graphene nanoribbons

We consider gated graphene nanoribbons subject to Berry-Mondragon boundary conditions in the presence of weak impurities. Using field-theoretical methods, we calculate the density of charge carriers (and, thus, the quantum capacitance) as well as the optical and DC conductivities at zero temperature...

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Veröffentlicht in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2014-03, Vol.87 (3), Article 50
Hauptverfasser: Beneventano, Carlota G., Fialkovsky, Ignat, Santangelo, Eve Mariel, Vassilevich, Dmitri V.
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container_title The European physical journal. B, Condensed matter physics
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creator Beneventano, Carlota G.
Fialkovsky, Ignat
Santangelo, Eve Mariel
Vassilevich, Dmitri V.
description We consider gated graphene nanoribbons subject to Berry-Mondragon boundary conditions in the presence of weak impurities. Using field-theoretical methods, we calculate the density of charge carriers (and, thus, the quantum capacitance) as well as the optical and DC conductivities at zero temperature. We discuss in detail their dependence on the gate (chemical) potential, and reveal a non-linear behaviour induced by the quantization of the transversal momentum.
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subjects Complex Systems
Condensed Matter Physics
Electric properties
Electron transport
Fluid- and Aerodynamics
Graphene
Graphite
Physics
Physics and Astronomy
Regular Article
Solid State Physics
title Charge density and conductivity of disordered Berry-Mondragon graphene nanoribbons
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