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Tytuł: A universal description of ultraslow glass dynamics
Autor: Martinez-Garcia, J.C.
Rzoska, Sylwester
Drozd-Rzoska, Aleksandra
Martinez-Garcia, J.
Słowa kluczowe: Glass
Data wydania: 2013
Źródło: Nature Communications, Vol. 4 (2013), art. no 1823
Abstrakt: 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
DOI: 10.1038/ncomms2797
ISSN: 2041-1723
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