Glass transition, topology, and elastic models of Se‐based glasses

• DOI: 10.1111/jace.19003
• Publication Date: 2023-01-21T10:53:42Z
• Authors: Ralph Chbeir; Aaron Welton; Matthew Burger; Soumendu Chakravarty; Shreeram Dash; Siddhesh Bhosle; Kapila Gunasekera; Badriah S. Almutairi; Bernard Goodman; Matthieu Micoulaut; Punit Boolchand
• Keywords: Rigidity (electromagnetism)

Abstract Features intrinsic to disorder and network aspects are ubiquitous in structural glasses. Among this important class of materials, chalcogenide glasses special—they built short‐range covalent forces, making them simpler than silicate that possess mixed ionic forces. Selenium‐based also display complex elastic phase transitions have been described from various models, including mean‐field approaches molecular simulations. These point the presence two sharply defined transitions, a rigidity stress transition non‐mean‐field character, separate three distinct topological phases flexible, isostatically rigid, stressed‐rigid. This article reviews physics these glassy networks. The glass temperature explained on level terms constraint theory (TCT), connectivity, open degrees freedom. broader TCT relation change high‐ k dielectrics, cements commented upon.