2003/06/18 by J. Cuevas, C. Katerji, J. F. R. Archilla +5 · 1 citation
Physics and Astronomy · #Nonlinear Photonic Systems #Theoretical and Computational Physics #Topological Materials and Phenomena #cond-mat.mtrl-sci #nlin.AO #nlin.PS
paper · pdf · doi:10.1016/s0375-9601(03)01097-1
published as Phys. Lett. A 315:364-371, 2003 · 11 pages, 10 figures
arxiv created 2003/06/18 · openalex publication_date 2003/08/08 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A vacancy defect is described by a Frenkel--Kontorova model with a discommensuration. This vacancy can migrate when interacts with a moving breather. We establish that the width of the interaction potential must be larger than a threshold value in order that the vacancy can move forward. This value is related to the existence of a breather centred at the particles adjacent to the vacancy.