CONDUCTIVITY SPECTROSCOPY OF NEW AgInP₂S₆ CRYSTALS

Abstract

ABSTRACT The dielectric properties of newly synthesized AgInP2S6 crystals were investigated in broad frequency (20 Hz–1 MHz) and temperature range (110 K–350 K). No anomaly in temperature dependence of complex dielectric permittivity indicating the polar phase transition can be detected down to the lowest temperatures. The dielectric properties of presented crystals are mainly caused by high conductivity. The frequency spectra of conductivity obey the Almond-West power law. The activation energy of conductivity was found to be E A /k = 7734 K. A suggestion is given that the electric conductivity in these crystals can be interpreted by ionic mechanism.