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- Title
Absolutely necessary to consider the caged dyna ics and the JGX ß-relaxation in solving the glass transition problem.
- Authors
Ngai, K. L.; Capaccioli, S.; Wang, L. M.
- Abstract
The 2003 seminal paper entitled "Is the Fragilityofa Liquid Embedded in the Properties ofIts Glass?"byTullio Scopigno, Giancarlo Ruocco, Francesco Sette, and Giulio Monaco, reported that the properties of the structural α-relaxation of glass-formers are already present in the faster caged dynamics. Their important discovery has far-reaching implication of the processes faster than the structural α-relaxation that cannot be ignored in solving the glass transition problem. Since then, experiments and simulations performed on many glass-formers with diverse chemical and physical structures have found strong connections of the α-relaxation with not only the caged dynamics but also with the secondary relaxation of the special kind, called the JGX β-relaxation. The general results indicate that these fast processes are inseparable from the α-relaxation, and any attempt to solvetheglasstransition problem should takeaccountofthisfact. Examples of the connections are given in this paperto elucidate thedevelopments and advances made since theinspiringpublication ofScopigno etal.
- Subjects
GLASS transitions; CHEMICAL structure
- Publication
Condensed Matter Physics, 2019, Vol 22, Issue 4, p1
- ISSN
1607-324X
- Publication type
Article
- DOI
10.5488/CMP.22.43605