Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1866150 | Physics Letters A | 2008 | 5 Pages |
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)
Authors
Yu Qiu, Yong-Jin Jiang, Guo-Ping Tong, Jie-Fang Zhang,