Dielectric relaxation in glassy Se90Cd6In4

Abstract

In the present Letter frequency (5 × 102 Hz-1 × 105 Hz) and temperature (308-333 K) dependence of dielectric parameter of Se90Cd6In4 glassy alloy has been examined. Conventional melt quench technique has been applied to prepare Se90Cd6In4 glassy alloy. It is observed that dielectric constant (ϵ') and dielectric loss factor (ϵ") change with frequency and temperature. The dielectric loss data has been utilised to determine the barrier height Wm, which is in accordance with the Elliott's theory of hoping of charge carriers over potential barrier between charge defect states in case of chalcogenide glasses. © The Institution of Engineering and Technology 2016.