Properties of As2Se3 chalcogenide glasses modified by manganese

Abstract

This work is concerned with the study of structural, optical, thermal and magnetic characteristics of the amorphous bulk As2Se3 glasses doped with Mn (concentration 2 and 5 wt. %). The studied glasses were synthesized by standard melt-quenched technique in evacuated quarts ampoules with subsequent air quenching. Structural studies were carried out using Raman and FTIR spectroscopy and X-ray diffraction. The radial distribution functions of doped and undoped bulk glasses were obtained and analyzed. In Raman spectra, main observed effect under the introduction of dopants was the change of relative concentration of main and non-stoichiometric structural unit characteristic for As2Se3 glasses. Influence of transition metals on the optical properties of As2Se3 glass was studied in mid-IR region. Introduction of transitional and rare-earth elements changes magnetic properties of investigated chalcogenide glasses