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arXiv · 1704.07103

Electron and phonon transport in twisted graphene nanoribbons

Aleandro Antidormi·Miquel Royo·Riccardo Rurali
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Abstract

We theoretically study the electrical, thermal and thermoelectric transport properties of graphene nanoribbons under torsional deformations. The modelling follows a nonequilibrium Green's function approach in the ballistic transport regime, describing the electrical and phononic properties through \textit{ab-initio} density functional theory and empirical interatomic potentials, respectively. We consider two different types of deformations, a continuous twist of a given angle applied to the nanoribbon, and two consecutive twists applied in opposite angular directions. The numerical results are carefully analysed in terms of spatially-resolved electron eigenchannels, polarization-dependent phonon transmission and thermoelectric figure-of-merit.

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Aleandro Antidormi, Miquel Royo, Riccardo Rurali. 2017-04-24. Electron and phonon transport in twisted graphene nanoribbons. https://doi.org/10.1088/1361-6463/aa6fd3

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