Determination of the contributionof the exciton-phonon interaction inthe processes of electronicexcitations self-trapping in alkalihalide crystals

  • Л.Н. Мясниковa K. Zhubanov Aktyubinsk Regional State University, Kazakhstan, Aktobe
  • Ш.Ж. Сaгимбaевa K. Zhubanov Aktyubinsk Regional State University, Kazakhstan, Aktobe
  • К.Ш. Шункеев K. Zhubanov Aktyubinsk Regional State University, Kazakhstan, Aktobe

Abstract

The paper is about the question of the exciton-phonon interaction in alkali halide crystals at low temperature deformation. The frequency of active modes of self-trapped excitons was calculated and the parameter of the Huang-Rhys was estimated with harmonic approximation, which has an optical bandwidth half-width dependence on temperature both before and after deformation. The increase in the value of the oscillation frequency after deformation indicates a change in the form of the adiabatic potential curve of the excited state of self-trapped excitons in alkali halide crystals.

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Published
2018-03-10
How to Cite
МЯСНИКОВA, Л.Н.; СAГИМБAЕВA, Ш.Ж.; ШУНКЕЕВ, К.Ш.. Determination of the contributionof the exciton-phonon interaction inthe processes of electronicexcitations self-trapping in alkalihalide crystals. Recent Contributions to Physics (Rec.Contr.Phys.), [S.l.], v. 59, n. 4, p. 102-109, mar. 2018. ISSN 1563-0315. Available at: <http://bph.kaznu.kz/index.php/zhuzhu/article/view/499>. Date accessed: 25 june 2018.
Section
Condensed Matter Physics and Materials Science Problems

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