One-center small polarons as short-lived precursors in self-trapping processes of holes and electron-hole pairs in alkali iodides

S. Iwai, T. Tokizaki, A. Nakamura, K. Tanimura, N. Itoh, A. Shluger

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

Initial processes of self-trapping of holes and electron-hole pairs in KI and RbI crystals have been investigated by means of a femtosecond pump-probe spectroscopy. We have found that a new short-lived intermediate is formed as a precursor of the self-trapped hole in the form of the halogen molecular ion with a D2h symmetry. This state is identified to be a one-center type self-trapped hole on the basis of the quantum mechanical cluster calculations. A one-center self-trapped state is also created as a precursor for self-trapped excitons.

Original languageEnglish
Pages (from-to)1691-1694
Number of pages4
JournalPhysical review letters
Volume76
Issue number10
DOIs
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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