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https://open.uns.ac.rs/handle/123456789/10516
Назив: | DC and AC conductivities of (As<inf>2</inf>S<inf>3</inf>)<inf>100-x</inf>(AsSe<inf> 0.5</inf>Te<inf>0.5</inf>I)<inf>x</inf> chalcogenide glasses | Аутори: | Lukić S. Skuban, Sonja Skuban, Fedor Petrović D. Tver'yanovich A. |
Датум издавања: | 1-авг-2008 | Часопис: | Physica B: Condensed Matter | Сажетак: | The DC and AC conductivities of samples from the system (As2S3)100-x(AsSe 0.5Te0.5I)x, where x=0, 5, 10, 15, 20, 25, 30, 35, 50, 70 and 90 mol%, were measured as a function of temperature. Besides, the AC conductivities of the samples with x=10 and 30 were measured as a function of frequency from room temperature to the glass transition temperature. The DC conductivity dependence on temperature is of the Arrhenius type, whereas the value of the pre-exponential factor suggests the electrical conduction by localized states in the band tails and by localized states near the Fermi level. The small values of the conduction activation energy (10-2-10-1 eV) obtained at higher frequencies suggest that the conduction in these materials is due to hopping of charge carriers between close defect states near the Fermi level. © 2008 Elsevier B.V. All rights reserved. | URI: | https://open.uns.ac.rs/handle/123456789/10516 | ISSN: | 09214526 | DOI: | 10.1016/j.physb.2008.01.038 |
Налази се у колекцијама: | PMF Publikacije/Publications |
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