Memorias de investigación
Artículos en revistas:
On the exciton model for ion-beam damage: the example of TiO2
Año:2010
Áreas de investigación
  • Ingeniería mecánica, aeronaútica y naval
Datos
Descripción
The non-radiative exciton decay model recently developed to account for swift-ion-beam damage to LiNbO3 is, here, discussed within a general physical perspective, taking previous work on alkali halides as a reference. Some general rules for the validity of excitonic models have been put forward, allowing one to predict the irradiation behaviour of other materials. As a new example of application, some preliminary data on the generation and growth of uniform amorphous layers induced by irradiation with Br at 13 MeV and 25 MeV have been performed on rutile (TiO2). In addition sub-threshold irradiations with Br ions at 9 MeV have been carried out. Defects generation is observed as a result. This effect is explained with the exciton model. Experiments are in the electronic excitation regime and use moderate fluences in the range of 6  1012 to 1.5  1014 cm2. The results show similar features to those found for LiNbO3 and are, in principle, consistent with a non-radiative exciton decay model.
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
3122
Hasta la página
3126
Mes
ENERO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Antonio Juan Rivera de Mena UPM
  • Autor: M.L. CRESPILLO Centro de Microanálisis de Materiales (CMAM), Universidad Autónoma de Madrid (UAM),
  • Autor: J. OLIVARES Centro de Microanálisis de Materiales (CMAM), Universidad Autónoma de Madrid (UAM),
  • Autor: R. SANZ Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC)
  • Autor: J. JENSEN Thin Film Physics Division, Department of Physics, Chemistry and Biology ¿ IFM, Linköping University
  • Autor: F. AGULLO-LOPEZ Centro de Microanálisis de Materiales (CMAM), Universidad Autónoma de Madrid (UAM),
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión