Abstract
Complex dielectric permittivity of (Ag3AsS3)x(As2S3)1-x (x = 0.3−0.9) superionic glasses and composites at 300 K were studied. A decrease of the real part of dielectric permittivity with frequency by almost five orders of magnitude as well as one dispersion region in glasses and two dispersion regions in composites, which is reflected in the dielectric loss spectra, were observed. Frequency dependences of dielectric permittivity within the range from 10 Hz to 310 9 Hz were analyzed in the framework of the Cole-Cole model. Compositional behaviour of Cole-Cole parameters in (Ag3AsS3)x(As2S3)1-x (x = 0.3−0.9) superionic glasses and composites was studied. The most substantial changes were observed with the transition from (Ag3AsS3)0.4(As2S3)0.6 glass to (Ag3AsS3)0.5(As2S3)0.5 composite and from (Ag3AsS3)0.6(As2S3)0.4 composite to (Ag3AsS3)0.8(As2S3)0.2 composite.
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