Summary

International Symposium on Nonlinear Theory and Its Applications

2016

Session Number:C1L-D

Session:

Number:C1L-D-2

Search for Discrete Breathers in Unstrained Graphene

Sergey Dmitirev,  Ivan Lobzenko,  Elena Korznikova,  

pp.-

Publication Date:2016/11/27

Online ISSN:2188-5079

DOI:10.34385/proc.48.C1L-D-2

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Summary:
Graphene is one atom thick carbon layer with unique combination of physical and mechanical properties promising for many applications. Nonlinear lattice dynamics of graphene has been addresses in recent theoretical and experimental works. In particular, several studies have been done on the possibility to excite discrete breathers (DBs), which are long-lived, spatially localized nonlinear vibrational modes. In the present work, based on the molecular dynamics simulations, we discuss the possibility to excite DBs in unstrained graphene. It is concluded that the results are strongly dependent on the interatomic potentials used in the simulations. Our study calls for additional studies based on ab initio calculations to prove or disprove the existence of DBs in unstrained graphene.