Scattering of charge carriers in graphene induced by topological defects

TL;DR

This paper investigates how topological defects like holes, pentagons, and heptagons affect charge carrier scattering in graphene, revealing that holes have minimal impact while pentagons and heptagons cause significant scattering.

Contribution

It provides a detailed analysis of the scattering effects of various topological defects in graphene, highlighting the different impacts of holes versus pentagons and heptagons.

Findings

Holes contribute negligibly to resistivity at low concentrations.

Pentagons and heptagons scatter fermionic currents significantly.

Defects induce different scattering behaviors depending on their topology.

Abstract

We study the scattering of graphene quasiparticles by topological defects, represented by holes, pentagons and heptagons. For holes, we found that at low concentration they give a negligible contribution to the resistivity. Whenever pentagons or heptagons are introduced we realize that a fermionic current is scattered by defects.