Electron self-trapping in a two-band system
Klinger M. I. , Taraskin S. N.
Strong electron self-trapping with energy gain close to the magnitude ofthe interband (or mobility) gap width is investigated. Interactions between the "self-trapping" state and the "non-parent" band states are taken into account. It gives rise to the change of occupation of the self-trapping state from initial single or zero up to almost double resulting in effective increase of electron-atom interaction. This effect restricts the value of pair self-trapping correlation energy.
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![](/ps/1284/article_19415_800_head.png "Strong electron self-trapping with energy gain close to the magnitude ofthe interband (or mobility) gap width is investigated. Interactions between the "self-trapping" state and the "non-parent" band states are taken into account. It gives rise to the change of occupation of the self-trapping state from initial single or zero up to almost double resulting in effective increase of electron-atom interaction. This effect restricts the value of pair self-trapping correlation energy.")