Mechanical response of some peculiar superionic glasses at ultrasonic frequencies†
Abstract
The mechanical relaxation processes in superionic iodomolybdate glasses have been revealed by ultrasonic measurements. The attenuation peaks of longitudinal and shear waves in (AgI)1−x(Ag2MoO4)x, with 0.25 ⩽ x ⩽ 0.4, at temperatures between 100 and 300 K have been analysed in terms of the Gaussian-type energy distribution. The analysis of the thermally activated relaxation processes of mobile