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.
|ジャーナル||Physica Status Solidi (C) Current Topics in Solid State Physics|
|出版ステータス||Published - 2007|
|イベント||14th International Conference on Positron Annihilation, ICPA 14 - Hamilton, ON, Canada|
継続期間: 2006 7 23 → 2006 7 28
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