 |
|
|
|
| HAL : hal-00282005, version 1 |
| Fiche détaillée |  Récupérer au format |
|
|
| The Seventh International Symposium on Swift Heavy Ions in Matter, Lyon : France (2008) |
|
|
|
|
| Defects creation in sapphire by swift heavy ions: a fluence depending process |
|
|
A. Kabir 1A. Meftah 1 |
|
|
| (06/2008) |
|
|
|
| Single crystals of sapphire (α-Al2O3) were irradiated at GANIL with 0.7 MeV/amu xenon ions corresponding to an electronic stopping power of 21 keV/nm. Several fluences were applied between 5×1011 and 2×1014 ions/cm². Irradiated samples were characterized using optical absorption spectroscopy. This technique exhibited the characteristic bands associated with F and F+ centers defects. The F centers density was found to increase with the fluence following two different kinetics: a rapid increase for fluences less than 1013 ions/cm² and then, a slow increase for higher fluences. For fluences less than 1013 ions/cm², results are in good agreement with those obtained by Canut et al. [Phys. Rev. B 51 (1995) 12194]. In the fluences range: 1013 to 1014 ions/cm², the F centers defects creation process is found to be different from the one evidenced for fluences less than 1013 ions/cm². |
|
|
|
|
|
|
|
|
|
|
|
| 1 : | Laboratoire de Recherches sur la Physico-Chimie des Surfaces et Interfaces (LRPCSI) |
|
|
|
Université 20 Août 1955 Skikda |
|
|
| 2 : | Institut d'Electronique du Solide et des Systèmes (InESS) |
|
|
|
CNRS : UMR7163 – Université Louis Pasteur - Strasbourg I |
|
|
| 3 : | Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP) |
|
|
|
Ecole Nationale Supérieure d'Ingénieurs de Caen – Université de Caen – CNRS : UMR6252 – CEA : DSM/IRAMIS |
|
|
|
|
|
|
|
|
|
| Domaine | : | Physique/Matière Condensée/Science des matériaux |
|
|
| Sapphire – Swift heavy ions – Optical absorption – F center defects |
|
|
|
| Liste des fichiers attachés à ce document : | |||||
|
|||||
|
|
|
| hal-00282005, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00282005 | |
| oai:hal.archives-ouvertes.fr:hal-00282005 | |
| Contributeur : Abdenour KABIR | |
| Soumis le : Jeudi 17 Juillet 2008, 12:09:06 | |
| Dernière modification le : Vendredi 19 Décembre 2008, 15:40:12 | |
