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arXiv · 2308.01660

Dimensionless parameter of structural ordering and excess entropy of metallic and tellurite glasses

A. S. Makarov·G. V. Afonin·R. A. Konchakov·V. A. Khonik·J. C. Qiao·A. N. Vasiliev·N. P. Kobelev
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Abstract

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 $ξ\rightarrow 0$ to $ξ\rightarrow 1$. 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.

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A. S. Makarov, G. V. Afonin, R. A. Konchakov, V. A. Khonik, J. C. Qiao, A. N. Vasiliev, N. P. Kobelev. 2023-08-03. Dimensionless parameter of structural ordering and excess entropy of metallic and tellurite glasses. https://arxiv.org/abs/2308.01660

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