Using a notion on the excess entropy of glass with respect to the counterpart crystal, we introduce a simple dimensionless order parameter ξ, which changes from ξ→0 to ξ→1. The former case corresponds to a strongly disordered liquid-like structure while the latter situation describes a highly ordered crystal-like glass. This approach is applied to 13 metallic and 2 tellurite glasses. We found that ξ is strongly sensitive to structural state and/or chemical composition. It can be also used for a comparison of the order in glasses belonging to different classes and appear to represent a new way of structural analysis.
@article{arxiv.2308.01660,
title = {Dimensionless parameter of structural ordering and excess entropy of metallic and tellurite glasses},
author = {A. S. Makarov and G. V. Afonin and R. A. Konchakov and V. A. Khonik and J. C. Qiao and A. N. Vasiliev and N. P. Kobelev},
journal= {arXiv preprint arXiv:2308.01660},
year = {2023}
}