IRREVERSIBLE RELAXATION TRANSFORMATIONS IN AMORPHOUS CHALCOGENIDES

In this paper we report the results of the study of changes in optical properties of asdeposited (0.150.43) amorphous films depending on the composition and physical aging processes under ambient laboratory conditions. The possible nature of the obtained experimental facts is discussed in terms of the local relaxation events in the potential energy landscape approach for amorphous heterogeneous material at the nanoscale level. The post-condensation irreversible transformations in amorphous chalcogenide films as a result of competing effects of interactions for mutually separated local rigid and soft atomic configurations have been considered.