Absolutely necessary to consider the caged dynamics and the JGX β-relaxation in solving the glass transition problem

The 2003 seminal paper entitled "Is the Fragility of a Liquid Embedded in the Properties of Its Glass?" by Tullio 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 c...

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Main Authors: K.L. Ngai, S. Capaccioli, L.M. Wang
Format: Article
Language:English
Published: Institute for Condensed Matter Physics 2019-12-01
Series:Condensed Matter Physics
Subjects:
Online Access:https://doi.org/10.5488/CMP.22.43605
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author K.L. Ngai
S. Capaccioli
L.M. Wang
author_facet K.L. Ngai
S. Capaccioli
L.M. Wang
author_sort K.L. Ngai
collection DOAJ
description The 2003 seminal paper entitled "Is the Fragility of a Liquid Embedded in the Properties of Its Glass?" by Tullio 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 solve the glass transition problem should take account of this fact. Examples of the connections are given in this paper to elucidate the developments and advances made since the inspiring publication of Scopigno et al.
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spelling doaj.art-ce46d2a3daf745a7b17ef858c3e8224b2022-12-22T01:39:13ZengInstitute for Condensed Matter PhysicsCondensed Matter Physics1607-324X2224-90792019-12-012244360510.5488/CMP.22.43605Absolutely necessary to consider the caged dynamics and the JGX β-relaxation in solving the glass transition problemK.L. NgaiS. CapaccioliL.M. WangThe 2003 seminal paper entitled "Is the Fragility of a Liquid Embedded in the Properties of Its Glass?" by Tullio 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 solve the glass transition problem should take account of this fact. Examples of the connections are given in this paper to elucidate the developments and advances made since the inspiring publication of Scopigno et al.https://doi.org/10.5488/CMP.22.43605glass transitionglasscaged dynamicssecondary relaxation
spellingShingle K.L. Ngai
S. Capaccioli
L.M. Wang
Absolutely necessary to consider the caged dynamics and the JGX β-relaxation in solving the glass transition problem
Condensed Matter Physics
glass transition
glass
caged dynamics
secondary relaxation
title Absolutely necessary to consider the caged dynamics and the JGX β-relaxation in solving the glass transition problem
title_full Absolutely necessary to consider the caged dynamics and the JGX β-relaxation in solving the glass transition problem
title_fullStr Absolutely necessary to consider the caged dynamics and the JGX β-relaxation in solving the glass transition problem
title_full_unstemmed Absolutely necessary to consider the caged dynamics and the JGX β-relaxation in solving the glass transition problem
title_short Absolutely necessary to consider the caged dynamics and the JGX β-relaxation in solving the glass transition problem
title_sort absolutely necessary to consider the caged dynamics and the jgx β relaxation in solving the glass transition problem
topic glass transition
glass
caged dynamics
secondary relaxation
url https://doi.org/10.5488/CMP.22.43605
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AT scapaccioli absolutelynecessarytoconsiderthecageddynamicsandthejgxbrelaxationinsolvingtheglasstransitionproblem
AT lmwang absolutelynecessarytoconsiderthecageddynamicsandthejgxbrelaxationinsolvingtheglasstransitionproblem