Generic features of the primary relaxation in glass-forming materials (Review Article)
We discuss structural relaxation in molecular and polymeric supercooled liquids, metallic alloys and orientational glass crystals. The study stresses especially the relationships between observables raised from underlying constraints imposed on degrees of freedom of vitrification systems. A self-con...
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| Опубліковано в: : | Физика низких температур |
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| Дата: | 2017 |
| Автор: | |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2017
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/175123 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Generic features of the primary relaxation in glass-forming materials (Review Article) / V.B. Kokshenev // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1174-1188. — Бібліогр.: 90 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862669120900694016 |
|---|---|
| author | Kokshenev, V.B. |
| author_facet | Kokshenev, V.B. |
| citation_txt | Generic features of the primary relaxation in glass-forming materials (Review Article) / V.B. Kokshenev // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1174-1188. — Бібліогр.: 90 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | We discuss structural relaxation in molecular and polymeric supercooled liquids, metallic alloys and orientational glass crystals. The study stresses especially the relationships between observables raised from underlying constraints imposed on degrees of freedom of vitrification systems. A self-consistent parametrization of the α-timescale on macroscopic level results in the material-and-model independent universal equation, relating three fundamental temperatures, characteristic of the primary relaxation, that is numerically proven in all studied glass formers. During the primary relaxation, the corresponding small and large mesoscopic clusters modify their size and structure in a self-similar way, regardless of underlying microscopic realizations. We show that cluster-shape similarity, instead of cluster-size fictive divergence, gives rise to universal features observed in primary relaxation. In all glass formers with structural disorder, including orientational-glass materials (with the exception of plastic crystals), structural relaxation is shown to be driven by local random fields. Within the dynamic stochastic approach, the universal subdiffusive dynamics corresponds to random walks on small and large fractals.
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| first_indexed | 2025-12-07T15:27:06Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-175123 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T15:27:06Z |
| publishDate | 2017 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Kokshenev, V.B. 2021-01-30T18:01:27Z 2021-01-30T18:01:27Z 2017 Generic features of the primary relaxation in glass-forming materials (Review Article) / V.B. Kokshenev // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1174-1188. — Бібліогр.: 90 назв. — англ. 0132-6414 PACS: 61.43.Fs, 61.43.Hv, 64.70.P https://nasplib.isofts.kiev.ua/handle/123456789/175123 We discuss structural relaxation in molecular and polymeric supercooled liquids, metallic alloys and orientational glass crystals. The study stresses especially the relationships between observables raised from underlying constraints imposed on degrees of freedom of vitrification systems. A self-consistent parametrization of the α-timescale on macroscopic level results in the material-and-model independent universal equation, relating three fundamental temperatures, characteristic of the primary relaxation, that is numerically proven in all studied glass formers. During the primary relaxation, the corresponding small and large mesoscopic clusters modify their size and structure in a self-similar way, regardless of underlying microscopic realizations. We show that cluster-shape similarity, instead of cluster-size fictive divergence, gives rise to universal features observed in primary relaxation. In all glass formers with structural disorder, including orientational-glass materials (with the exception of plastic crystals), structural relaxation is shown to be driven by local random fields. Within the dynamic stochastic approach, the universal subdiffusive dynamics corresponds to random walks on small and large fractals. The author is grateful to Austen Angell, Alexander S. Bakai, Ralph Chamberlin, Ralph Colby, Josef Klafter, Takashi Odagaki, and Michael Shlesinger for their interest to the present research and for helpful critical comments. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Low dimensionality and inhomogeneity effects in quantum matter Generic features of the primary relaxation in glass-forming materials (Review Article) Article published earlier |
| spellingShingle | Generic features of the primary relaxation in glass-forming materials (Review Article) Kokshenev, V.B. Low dimensionality and inhomogeneity effects in quantum matter |
| title | Generic features of the primary relaxation in glass-forming materials (Review Article) |
| title_full | Generic features of the primary relaxation in glass-forming materials (Review Article) |
| title_fullStr | Generic features of the primary relaxation in glass-forming materials (Review Article) |
| title_full_unstemmed | Generic features of the primary relaxation in glass-forming materials (Review Article) |
| title_short | Generic features of the primary relaxation in glass-forming materials (Review Article) |
| title_sort | generic features of the primary relaxation in glass-forming materials (review article) |
| topic | Low dimensionality and inhomogeneity effects in quantum matter |
| topic_facet | Low dimensionality and inhomogeneity effects in quantum matter |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/175123 |
| work_keys_str_mv | AT kokshenevvb genericfeaturesoftheprimaryrelaxationinglassformingmaterialsreviewarticle |