PHYSICS AND MATHEMATICS

Low-frequency dielectric relaxation in glassy system Ge$_{28.5}$Pb$_{15}$S$_{56.5}$ with iron impurity

R. A. Castro, N. I. Anisimova, A. A. Kononov

Herzen State Pedagogical University of Russia, St. Petersburg

Abstract: The results of the investigation of dielectric relaxation processes in the glassy system Ge$_{28.5}$Pb$_{15}$S$_{56.5}$ are presented in the paper. The introduction of an iron impurity into a glass matrix leads to a sharp increase in the value of the dielectric constant and a decrease in the dielectric loss value $\mathrm{tg}\,\delta$. The observed regularities are explained in terms of the cluster model of a structure (two-phase model) of doped glass.

Keywords: dielectric relaxation, glassy system, iron impurity.

DOI: 10.23670/IRJ.2018.69.032