Interaction of moving discrete breathers with interstitial defects

J. Cuevas, B. Sanchez-Rey, J. C. Eilbeck, Francis Michael Russell

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)
92 Downloads (Pure)


In this paper, interstitial migration generated by scattering with a mobile breather is investigated numerically in a Frenkel-Kontorova one-dimensional lattice. Consistent with experimental results it is shown that interstitial diffusion is more likely and faster than vacancy diffusion. Our simulations support the hypothesis that a long-range energy transport mechanism involving moving nonlinear vibrational excitations may significantly enhance the mobility of point defects in a crystal lattice.
Original languageEnglish
Pages (from-to)1057 - 1067
Number of pages11
JournalDiscrete and Continuous Dynamical Systems - Series S
Issue number5
Publication statusPublished - Dec 2010


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