Nonlinear Conductivity in Graphene

TL;DR

This paper models the nonlinear electrical conductivity of graphene using tight-binding and Boltzmann transport, predicting strong nonlinear effects that could enable high-frequency generation applications.

Contribution

It provides a theoretical prediction of nonlinear conductivity effects in graphene, expanding understanding of its high-frequency response.

Findings

Predicted strong nonlinear conductivity effects in graphene.

Potential applications in high-frequency generation.

Used tight-binding and Boltzmann transport models.

Abstract

We consider the tight-binding approximation for the description of energy bands of graphene, together with the standard Boltzmann's transport equation and constant relaxation time, an expression for the conductivity was obtained. We predicted strong nonlinear effects in graphene which may be useful for high frequency generation.