Structure and physical properties of the glassy As2S3Gex system

Abstract Spectroscopical and structural investigations directly reveal the presence of those structural units which were predicted by Myuller and coworkers to form the continuous network of As-S-Ge glasses. After refining Myuller's model to some extent, the variation with x of several physical properties (density, microhardness, electrical dark conductivity, photoconductivity, optical gap and first-neighbour coordination) in the whole series of As 2 S 3 Ge x glasses can be either understood qualitatively or even calculated quantitatively with the aid of additivity laws.