Solitons in graphene

TL;DR

This paper provides direct evidence of solitons in graphene through molecular dynamics simulations and mathematical analysis, revealing their emergence, propagation, and collisions, which may explain graphene's unusual thermal properties.

Contribution

It presents the first direct evidence of solitons in graphene and derives a soliton solution, advancing understanding of graphene's thermal behavior.

Findings

Solitons emerge in graphene flakes with different chiralities

In-plane longitudinal and transverse solitons are observed

Soliton propagation and collision behaviors are characterized

Abstract

In this paper we demonstrate the direct evidence of solitons in graphene by means of molecular dynamics simulations and mathematical analysis. It shows various solitons emerge in the graphene flakes with two different chiralities by cooling procedures. They are in-plane longitudinal and transverse solitons. Their propagations and collisions are studied in details. A soliton solution is derived by making several valid simplifications. We hope it shed light on understanding the unusual thermal properties of graphene.