Interaction of moving discrete breathers with interstitial defects
Authors
J. Cuevas, B. Sanchez-Rey, J. C. Eilbeck, F. M. Russell
Categories
Abstract
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.
Interaction of moving discrete breathers with interstitial defects
Categories
Abstract
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.
Authors
J. Cuevas, B. Sanchez-Rey, J. C. Eilbeck et al. (+1 more)
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