Article ID Journal Published Year Pages File Type
1866150 Physics Letters A 2008 5 Pages PDF
Abstract

Relaxation process of self-trapped polaron is investigated by a nonadiabatic molecular dynamic method. We show localized disorder due to lattice fluctuations can give rise to a tightly-bound electronic state in ultraviolet illuminated SrTiO3 crystal. This bound state is actually a self-trapped polaron in accordance with the experimentally observed large Stokes-shift. The formation of the self-trapped polaron is shown to be an ultrafast process.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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