Dynamic process of self-trapped polaron in photoexcited SrTiO3

Yu Qiu; Yong Jin Jiang; Guo Ping Tong; Jie Fang Zhang

doi:10.1016/j.physleta.2008.01.002

Dynamic process of self-trapped polaron in photoexcited SrTiO₃

Yu Qiu
, Yong Jin Jiang
, Guo Ping Tong
, Jie Fang Zhang

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

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.

Original language	English (US)
Pages (from-to)	2920-2924
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	372
Issue number	16
DOIs	https://doi.org/10.1016/j.physleta.2008.01.002
State	Published - Apr 14 2008
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the Natural Science Foundation of China and the Natural Science Foundation of Zhejiang Province of China.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

Dynamics
Luminescence
Photoexcitation
Self-trapped polaron

Publisher link

10.1016/j.physleta.2008.01.002

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Cite this

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title = "Dynamic process of self-trapped polaron in photoexcited SrTiO3",

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.",

keywords = "Dynamics, Luminescence, Photoexcitation, Self-trapped polaron",

author = "Yu Qiu and Jiang, \{Yong Jin\} and Tong, \{Guo Ping\} and Zhang, \{Jie Fang\}",

note = "Funding Information: This work was supported by the Natural Science Foundation of China and the Natural Science Foundation of Zhejiang Province of China. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2008",

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doi = "10.1016/j.physleta.2008.01.002",

language = "English (US)",

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T1 - Dynamic process of self-trapped polaron in photoexcited SrTiO3

AU - Qiu, Yu

AU - Jiang, Yong Jin

AU - Tong, Guo Ping

AU - Zhang, Jie Fang

N1 - Funding Information: This work was supported by the Natural Science Foundation of China and the Natural Science Foundation of Zhejiang Province of China. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2008/4/14

Y1 - 2008/4/14

N2 - 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.

AB - 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.

KW - Dynamics

KW - Luminescence

KW - Photoexcitation

KW - Self-trapped polaron

UR - https://www.scopus.com/pages/publications/40949101781

UR - https://www.scopus.com/pages/publications/40949101781#tab=citedBy

U2 - 10.1016/j.physleta.2008.01.002

DO - 10.1016/j.physleta.2008.01.002

M3 - Article

AN - SCOPUS:40949101781

SN - 0375-9601

VL - 372

SP - 2920

EP - 2924

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

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