Features of the management of the rule of Urbakh in ZnSe:Yb crystals

Autor: O.V. Kinzerska, I.M. Senko, M.M. Slyotov, O.M. Slyotov, T.M. Mazur
Jazyk: English<br />Ukrainian
Rok vydání: 2023
Předmět:
Zdroj: Фізика і хімія твердого тіла, Vol 24, Iss 3, Pp 495-498 (2023)
Druh dokumentu: article
ISSN: 1729-4428
2309-8589
DOI: 10.15330/pcss.24.3.495-498
Popis: A comparative analysis of the edge absorption spectra measured in the temperature range of 290–470 K for two types of zinc selenide substrates has been carried out. It has been established that the self-absorption edge of pure ZnSe: Yb melt crystals is described by the «crystalline» approximation of the general Urbach rule, which is a consequence of dynamic disordering. In samples doped with ytterbium, at 330 K, a reversible transition from dynamic to static disordering was detected, which is described by the “glassy” approximation of the general Urbach rule.
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