Influence of moving breathers on vacancies migration

Details Influence of moving breathers on vacancies migration Influence of moving breathers on vacancies migration

2003-06-18

arxiv.org/abs/nlin/0306039v1

Phys. Lett. A 315:364-371, 2003

Nonlinear Sciences

Pattern Formation and Solitons

11 pages, 10 figures

Scientific paper

10.1016/S0375-9601(03)01097-1

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.

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