| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1687185 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2006 | 5 Pages |
Abstract
Single crystals of MgF2 were irradiated with different ions of specific energy between 1.4 and 11.1 MeV/u. Using UV–Vis absorption spectroscopy, the creation of color centers was analysed as a function of the ion fluence and energy loss. The concentration of single F- and F2-centers versus fluence exhibits a nonlinear evolution similar as in LiF. The creation efficiency of color centers and their thermal stability deduced from isochronal annealing experiments are discussed in terms of aggregation as well as recombination of electron and hole centers. In addition, profilometry measurements were performed quantifying ion-induced volume changes as a function of the beam parameters.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
A.S. El-Said, R. Neumann, K. Schwartz, C. Trautmann,