Memorias de investigación
Research Publications in journals:
Effect of defect accumulation on ion-beam damage morphology by electronic excitation in lithium niobate: A MonteCarlo approach
Year:2010
Research Areas
  • Mechanical aeronautics and naval engineering
Information
Abstract
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.
International
Si
JCR
No
Title
Nuclear Instruments and Methods in Physics Research B
ISBN
0167-5087
Impact factor JCR
0
Impact info
Volume
268
Journal number
From page
2249
To page
2256
Month
ENERO
Ranking
Participants
  • 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
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión