Interaction of moving discrete breathers with interstitial defects
arXiv:0907.4499 · doi:10.3934/dcdss.2011.4.1057
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.
11 pages, 10 figures
References in corpus (8)
- Evidence for moving breathers in a layered crystal insulator at 300K
- Moving discrete breathers in a Klein--Gordon chain with an impurity
- Influence of moving breathers on vacancies migration
- Interaction of moving discrete breathers with vacancies
- Breather trapping and breather transmission in a DNA model with an interface
- Energy funneling in a bent chain of Morse oscillators with long-range coupling
- Interaction of a Discrete Breather with a Lattice Junction
- Breather Statics and Dynamics in Klein--Gordon Chains with a Bend