SPECTROSCOPIC STUDIES g-GeSe2 -MATERIAL FOR TELECOMMUNICATION: THEORY AND EXPERIMENT

Abstract

Nowadays a one of the most debated issues in glass science is the origin and the extent of chemical order in disordered networks. In the classic Ge-Se system an addition of Ge to glassy Se imposes an additional length scale on the chemical ordering, associated with Ge–Ge correlations, which is manifested by a so called first sharp diffraction peak (FSDP) that reaches its maximum height at the GeSe2 composition.