Ballistic transport properties across nonuniform strain barriers in graphene

TL;DR

This paper investigates how uniaxial strain affects electron transmission and conductivity in graphene with smooth, nonuniform strain barriers, providing insights into realistic transport scenarios in corrugated graphene.

Contribution

It introduces a model for smooth, nonuniform strain barriers in graphene and analyzes their impact on ballistic transport properties, advancing beyond sharp barrier studies.

Findings

Strain modifies transmission and conductivity in graphene.

Smooth barriers lead to different transport characteristics than sharp ones.

Results aid in understanding realistic corrugated graphene transport.

Abstract

We study the effect of uniaxial strain on the transmission and the conductivity across a strain-induced barrier in graphene. At variance with conventional studies, which consider sharp barriers, we consider a more realistic, smooth barrier, characterized by a nonuniform, continuous strain profile. Our results are instrumental towards a better understanding of the transport properties in corrugated graphene.