We develop a model to explain the temperature dependence of the delocalized Ps fraction in SrF2. The model accounts for both classical and tunnel detrapping mechanisms. We show that it is this model that reproduces the available experimental data well throughout the entire temperature range, thus demonstrating an important role of the temperature activated tunnel detrapping for the self-trapped Ps in SrF2.
|Number of pages||4|
|Journal||Physica Status Solidi (C) Current Topics in Solid State Physics|
|Publication status||Published - 2007|
|Event||14th International Conference on Positron Annihilation, ICPA 14 - Hamilton, ON, Canada|
Duration: 2006 Jul 23 → 2006 Jul 28
ASJC Scopus subject areas
- Condensed Matter Physics