Kinks and antikinks of buckled graphene: A testing ground for the φ4 field model

R. D. Yamaletdinov, V. A. Slipko, and Y. V. Pershin
Phys. Rev. B 96, 094306 – Published 18 September 2017

Abstract

Kinks and antikinks of the classical φ4 field model are topological solutions connecting its two distinct ground states. Here we establish an analogy between the excitations of a long graphene nanoribbon buckled in the transverse direction and φ4 model results. Using molecular dynamics simulations, we investigated the dynamics of a buckled graphene nanoribbon with a single kink and with a kink-antikink pair. Several features of the φ4 model have been observed including the kink-antikink capture at low energies, kink-antikink reflection at high energies, and a bounce resonance. Our results pave the way towards the experimental observation of a rich variety of φ4 model predictions based on graphene.

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  • Received 20 May 2017

DOI:https://doi.org/10.1103/PhysRevB.96.094306

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsNonlinear Dynamics

Authors & Affiliations

R. D. Yamaletdinov1, V. A. Slipko2,3, and Y. V. Pershin4,1,*

  • 1Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk 630090, Russia
  • 2Department of Physics and Technology, V. N. Karazin Kharkov National University, Kharkov 61022, Ukraine
  • 3Institute of Physics, Opole University, Opole 45-052, Poland
  • 4Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA

  • *pershin@physics.sc.edu

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Issue

Vol. 96, Iss. 9 — 1 September 2017

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