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Título: A detailed approach for the classification and statistical analysis of irradiation induced defects
Autor: López Martín, Pedro
Santos Tejido, Iván
Aboy Cebrián, María
Marqués Cuesta, Luis Alberto
Pelaz Montes, María Lourdes
Año del Documento: 2015
Descripción: Producción Científica
Documento Fuente: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 352, 2015, Pages 156-159
Resumen: New criteria are presented for the classification and statistical analysis of defects from irradiation cascades that allow a more detailed description of the diversity of damage, especially amorphous regions. Classical molecular dynamics simulations are used to analyze the damage produced by 2 keV Si recoils annealed at 1000 K for 1 ns. Based on a density grouping criterion of elementary defects (displaced atoms and empty lattice sites) the non-uniformity of local defect density within damage regions is revealed. The density criterion is able to distinguish dense damage regions which evolve independently upon annealing (although they are connected by some defects), while keeping small and compact regions unaltered. Damage regions are classified according to the size, net number of defects and compactness, calculated by averaging the distance among all defects, parameters that have a direct impact on their stability.
Palabras Clave: Irradiation defects
Molecular dynamics
Thermal treatments
Irradiación
Dinámica molecular
Revisión por Pares: SI
DOI: https://doi.org/10.1016/j.nimb.2014.12.026
Patrocinador: Ministerio de Ciencia e Innovación (Proyect TEC2011-27701)
Version del Editor: http://www.sciencedirect.com/science/article/pii/S0168583X14010544
Idioma: eng
URI: http://uvadoc.uva.es/handle/10324/28016
Derechos: info:eu-repo/semantics/openAccess
Aparece en las colecciones:DEP22 - Artículos de revista

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