Low- frequency vibrational mode and thermal anomalies in glassy g-As2S3: contribution of AsnSm nanoclusters vibrations influenced by different level connections with surrounding glassy matrix

Abstract

Experimental and theoretical LF spectroscopic studies were performed on binary AsxS100-x (x = 6, 22, 28, 40) glasses and As-S polycrystalline composites (mixtures of glass with polycrystalline material, (x = 6, 60)). The frequency and intensity of BP changed significantly with increasing cross-linking degree and topological ordering of the network (Fig. 1, Fig. 2A).