Dielectric parameters in Se70Te30 and Se70Te28Zn2 chalcogenide glasses

No dielectric loss peak is observed in glassy Se70Te30. However, such loss peaks exist in the glassy Se70Te28Zn2 in the above frequency and temperature range. The Cole-Cole diagrams have been used to determine some parameters such as the distribution parameter (α), the macroscopic relaxation time (τ0), the molecular relaxation time (τ) and the Gibb's free energy for relaxation (ΔF).