A universal description of ultraslow glass dynamics

Martínez-García, Julio Cesar; Rzoska, Sylwester J.; Drozd-Rzoska, Aleksandra; Martinez-Garcia, Jorge (2013). A universal description of ultraslow glass dynamics. Nature communications, 4, p. 1823. Nature Publishing Group 10.1038/ncomms2797

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The dynamics of glass is of importance in materials science but its nature has not yet been fully understood. Here we report that a verification of the temperature dependencies of the primary relaxation time or viscosity in the ultraslowing/ultraviscous domain of glass-forming systems can be carried out via the analysis of the inverse of the Dyre-Olsen temperature index. The subsequent analysis of experimental data indicates the possibility of the self-consistent description of glass-forming low-molecular-weight liquids, polymers, liquid crystals, orientationally disordered crystals and Ising spin-glass-like systems, as well as the prevalence of equations associated with the 'finite temperature divergence'. All these lead to a new formula for the configurational entropy in glass-forming systems. Furthermore, a link to the dominated local symmetry for a given glass former is identified here. Results obtained show a new relationship between the glass transition and critical phenomena.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Martínez García, Julio Cesar

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

2041-1723

Publisher:

Nature Publishing Group

Language:

English

Submitter:

Franziska Bornhauser-Rufer

Date Deposited:

04 Apr 2014 23:19

Last Modified:

02 Oct 2015 12:47

Publisher DOI:

10.1038/ncomms2797

PubMed ID:

23652011

BORIS DOI:

10.7892/boris.46853

URI:

https://boris.unibe.ch/id/eprint/46853

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