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A. A. HORVAT1,* , V. I. MIKLA2, V. V. MINKOVICH3, A. A. MOLNAR3, A. M. SOLOMON4
- Faculty of Physics, Uzhhorod National University,A. Voloshinstr., 54,88000 Uzhhorod,Ukraine
- Ukrainian-Hungarian Education and Scientific Institute, Uzhhorod National University, Universytetskastr. 14,88017 Uzhhorod, Ukraine
- Faculty of Physics, Uzhhorod National University, A. Voloshinstr., 54,88000 Uzhhorod,Ukraine
- Institute of Electron Physics, National Academy of Science of Ukraine, Universytetska str., 21, 88017 Uzhhorod, Ukraine
The temperature-frequency dependences of the complex dielectric constant (ε*) real (ε') and imaginary (ε'') components are studied in aged under normal laboratory conditions for several decades glassy and revitrifiedselenium at frequencies 10Hz -50 kHz and in the temperature range from 293 K to 420 K. The most significant difference in the behavior of dielectric constant in aged andrevitrifiedsamples is observed at the crystallization of glassy samples.In aged samples a significant dielectric dispersion was detected, which is probably due to the micro-heterogeneity of the glass structure. This latter can be associated with the presence of transition regions between the vitreous matrix and nuclei of crystalline clusters.
Glassy selenium, Aging, Dielectric response, Microheterogeneity, Cole–Cole diagrams.
Submitted at: Dec. 3, 2020
Accepted at: June 11, 2021
A. A. HORVAT, V. I. MIKLA, V. V. MINKOVICH, A. A. MOLNAR, A. M. SOLOMON, Dielectric spectroscopy of aged glassy and revitrified selenium, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 5-6, pp. 264-269 (2021)
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