Memorias de investigación
Artículos en revistas:
Effect of defect accumulation on ion-beam damage morphology by electronic excitation in lithium niobate: A MonteCarlo approach
Año:2010
Áreas de investigación
  • Ingeniería mecánica, aeronaútica y naval
Datos
Descripción
We present a MonteCarlo approach to the non-radiative exciton-decay model recently proposed to describe ion-beam damage in LiNbO3 produced in the electronic excitation regime. It takes into account the statistical (random) spatial distribution of ion impacts on the crystal surface. The MonteCarlo approach is necessary to simulate the evolution of the damage morphology with irradiation fluence from the single track regime to the overlapping track regime. A detailed comparison between the morphologies found for sub-threshold and above threshold irradiations is presented. Moreover, a good representation of the Avrami¿s type kinetics for amorphization has been achieved and it is in fair accordance with experiment. For moderate fluences where homogeneous amorphous layers are generated, the new approach predicts that the amorphous and crystalline layers are separated by a diffuse (thick) boundary that includes a mixed amorphous-crystalline composition.
Internacional
Si
JCR del ISI
No
Título de la revista
Nuclear Instruments and Methods in Physics Research B
ISSN
0167-5087
Factor de impacto JCR
0
Información de impacto
Volumen
268
DOI
Número de revista
Desde la página
2249
Hasta la página
2256
Mes
ENERO
Ranking
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Participantes
  • Autor: C. GARCIA Laboratory of Synchrotron Light (CELLS-ALBA),
  • Autor: J. OLIVARES Centro de Microanalisis de Materiales
  • Autor: Antonio Juan Rivera de Mena UPM
  • Autor: M.L. CRESPILLO Centro de Microanalisis de Materiales
  • Autor: F. AGULLO-LOPEZ Centro de Microanalisis de Materiales
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión