Hopping Mechanism of Charge Transfer in the Thin Layers of a Ge28.5Рb15S56.5 Vitreous System
- Authors: Kastro R.A.1, Khanin S.D.1,2, Anisimova N.I.1, Grabko G.I.3
-
Affiliations:
- Herzen State Pedagogical University of Russia
- Budyonny Military Academy of Communications
- Transbaikal State University
- Issue: Vol 44, No 5 (2018)
- Pages: 398-401
- Section: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/216683
- DOI: https://doi.org/10.1134/S1087659618050073
- ID: 216683
Cite item
Abstract
The results of the study of the charge transfer processes in the thin layers of a Ge28.5Рb15S56.5 vitreous system are presented. The power-law dependence of the conductivity on frequency and a decrease in the value of the exponent s with increasing temperature are found. The charge transfer is a thermally activated process and two areas on the temperature dependence of conductivity are present. The activation energies of these areas are Е1 = 0.20 ± 0.01 and Е2 = 0.50 ± 0.01 eV, respectively. The obtained results are explained within the scope of the correlated barrier hopping (CBH) model of the hopping conductivity in disordered systems. The main microparameters of the system, namely, the density of the localized state (N), hopping length (Rω), and the maximal value of the height of the potential barrier (WM), are calculated.
Keywords
About the authors
R. A. Kastro
Herzen State Pedagogical University of Russia
Author for correspondence.
Email: recastro@mail.ru
Russian Federation, St. Petersburg, 191186
S. D. Khanin
Herzen State Pedagogical University of Russia; Budyonny Military Academy of Communications
Email: recastro@mail.ru
Russian Federation, St. Petersburg, 191186; St. Petersburg, 194064
N. I. Anisimova
Herzen State Pedagogical University of Russia
Email: recastro@mail.ru
Russian Federation, St. Petersburg, 191186
G. I. Grabko
Transbaikal State University
Email: recastro@mail.ru
Russian Federation, Chita, 672039