Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
On the exciton model for ion-beam damage: the example of TiO2
Year:2010
Research Areas
  • Mechanical aeronautics and naval engineering
Information
Abstract
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.
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
3122
To page
3126
Month
ENERO
Ranking
Participants
  • 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),)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)