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EnglishSome examples of recent advances in experiment and theory that have impact on solution of the glass transition problem are briefly discussed. The fundamental importance of a special class of secondary relaxations called the Johari-Goldstein beta-relaxations becomes clear from the recent advances. The main part of the paper addresses a recent research problem, which is the purported anomalous temperature dependence of the relaxation time of another secondary (gamma) relaxation found by fitting dielectric relaxation data in several glass-formers. We show the anomalous T-dependence of this faster gamma-relaxation is caused by the influence exerted by the slower Johari-Goldstein beta-relaxation in the vicinity. (C) 2008 Elsevier B.V. All rights reserved.
| Autori interni: | |
| Autori: | Ngai K. L.; Grzybowska K.; Grzybowski A.; Kaminska E.; Kaminski K.; Paluch M.; Capaccioli S |
| Titolo: | Recent advances in fundamental understanding of glass transition |
| Anno del prodotto: | 2008 |
| Digital Object Identifier (DOI): | 10.1016/j.jnoncrysol.2008.04.057 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/11568/125550
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