Artículo
Interaction of moving discrete breathers with vacancies
Autor/es | Cuevas-Maraver, Jesús
Archilla, Juan F. R. Sánchez-Rey, Bernardo Romero Romero, Francisco |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2006 |
Fecha de depósito | 2015-05-05 |
Publicado en |
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Resumen | In this paper a Frenkel–Kontorova model with a nonlinear int
eraction potential
is used to describe a vacancy defect in a crystal. According t
o recent numerical
results [Cuevas
et al
. Phys. Lett. A 315, 364 (2003)] ... In this paper a Frenkel–Kontorova model with a nonlinear int eraction potential is used to describe a vacancy defect in a crystal. According t o recent numerical results [Cuevas et al . Phys. Lett. A 315, 364 (2003)] the vacancy can migrate when it interacts with a moving breather. We study more thoroughl y the phenomenology caused by the interaction of moving breathers with a single v acancy and also with double vacancies. We show that vacancy mobility is strongly correlated with the existence and stability properties of stationary breather s centered at the particles adjacent to the vacancy, which we will now call vacancy breat hers. |
Agencias financiadoras | Ministerio de Educación y Ciencia (MEC). España |
Ficheros | Tamaño | Formato | Ver | Descripción |
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PD_Cuevas_2006_interaction.pdf | 401.8Kb | [PDF] | Ver/ | |