Influence of the cooling rate on the structural properties of silver nanowires

• Autores: Cuba Supanta, G., Landauro, C. V., Medrano, L. R., Rojas, J.
• Formato: artículo
• Fecha de Publicación: 2011
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/8697
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/fisica/article/view/8697
• Nivel de acceso: acceso abierto
• Materia: Nanohilo; dinámica molecular; estructura atómica.; Nanowire; Molecular Dynamics; Atomic structure

In this paper we study the influence of cooling rate on the structural properties of silver nanowires with 1.6 nm of diameter. This study is done employing molecular dynamics methods with a tight-binding potential. The cooling rates used are in the range of 0.25-25 K/ps. The structural analysis of these systems is performed studying the pair correlation function and the pair analysis technique. The results indicate that the cooling rate affects significantly the structural properties of silver nanowires finding two representative rates, the rupture rate of 2.55 K/ps, where the nanowire is broken into two nanoparticles, and the collapse rate of 1.73 K/ps, where the two nanoparticles collapse to one spherical nanoparticle.