Energetic Diffusion in ternary sets of Ge-Se-In Chalcogenide Glasses

The composition dependence of energetic parameter (A) in two sets of Ge-Se-In glasses, namely, Ge10Se90-xInx (x = 5, 10, 15, 20) and Ge15Se85-xInx (x = 0, 5, 10, 15, 20) have been studied by using rigidity percolation theory and bond constraints theory. Parameter (A) shows a local maxima at = 2.67. The results are discussed on the basis of the topological and rigidity theory exhibited by covalent network glasses. The relative sensitivity of parameter (A) to these phenomena discussed.