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Influence of phonon dispersion on exciton damping in ionic crystals

Influence of phonon dispersion on exciton damping in ionic crystals

The manifestation of phonon dispersion on frequency and temperature dependence of exciton damping is investigated theoretically for the models of crystal with the large and small exciton radii. The correlation between the dispersion and the frequency intervals with phonon absorption and emission is...

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Main Author: Grigorchuk, N.I.
Format: Article
Language:English
Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2001
Series:Semiconductor Physics Quantum Electronics & Optoelectronics
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/119319
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spelling irk-123456789-1193192017-06-07T03:03:46Z Influence of phonon dispersion on exciton damping in ionic crystals Grigorchuk, N.I. The manifestation of phonon dispersion on frequency and temperature dependence of exciton damping is investigated theoretically for the models of crystal with the large and small exciton radii. The correlation between the dispersion and the frequency intervals with phonon absorption and emission is discussed for the exciton of TlBr, ZnS and some other crystals as examples. It is demonstrated that depending on frequency the dispersion results both in increase and reduction of the exciton damping. In addition, the intensity of exciton damping close to the peaks of phonon absorption and emission is varied. The change of the tendency of influence of dispersion on damping for some fixed frequency with temperature growing is noticed. 2001 Article Influence of phonon dispersion on exciton damping in ionic crystals / N.I. Grigorchuk // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2001. — Т. 4, № 4. — С. 323-330. — Бібліогр.: 23 назв. — англ. 1560-8034 PACS: 71.35.-y; 71.36.+c; 78.20.-e http://dspace.nbuv.gov.ua/handle/123456789/119319 en Semiconductor Physics Quantum Electronics & Optoelectronics Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description The manifestation of phonon dispersion on frequency and temperature dependence of exciton damping is investigated theoretically for the models of crystal with the large and small exciton radii. The correlation between the dispersion and the frequency intervals with phonon absorption and emission is discussed for the exciton of TlBr, ZnS and some other crystals as examples. It is demonstrated that depending on frequency the dispersion results both in increase and reduction of the exciton damping. In addition, the intensity of exciton damping close to the peaks of phonon absorption and emission is varied. The change of the tendency of influence of dispersion on damping for some fixed frequency with temperature growing is noticed.
format Article
author Grigorchuk, N.I.
spellingShingle Grigorchuk, N.I.
Influence of phonon dispersion on exciton damping in ionic crystals
Semiconductor Physics Quantum Electronics & Optoelectronics
author_facet Grigorchuk, N.I.
author_sort Grigorchuk, N.I.
title Influence of phonon dispersion on exciton damping in ionic crystals
title_short Influence of phonon dispersion on exciton damping in ionic crystals
title_full Influence of phonon dispersion on exciton damping in ionic crystals
title_fullStr Influence of phonon dispersion on exciton damping in ionic crystals
title_full_unstemmed Influence of phonon dispersion on exciton damping in ionic crystals
title_sort influence of phonon dispersion on exciton damping in ionic crystals
publisher Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
publishDate 2001
url http://dspace.nbuv.gov.ua/handle/123456789/119319
citation_txt Influence of phonon dispersion on exciton damping in ionic crystals / N.I. Grigorchuk // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2001. — Т. 4, № 4. — С. 323-330. — Бібліогр.: 23 назв. — англ.
series Semiconductor Physics Quantum Electronics & Optoelectronics
work_keys_str_mv AT grigorchukni influenceofphonondispersiononexcitondampinginioniccrystals
first_indexed 2023-10-18T20:34:17Z
last_indexed 2023-10-18T20:34:17Z
_version_ 1796150547776012288

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