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A relationship between diffusivity and cooperativity of supercooled liquids in the proximity of glass transition
http://hdl.handle.net/2298/34184
http://hdl.handle.net/2298/34184a0fec129-8059-4f31-b477-de6875c0d202
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JNCS_383_044-048.pdf (193.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2016-03-04 | |||||
| タイトル | ||||||
| タイトル | A relationship between diffusivity and cooperativity of supercooled liquids in the proximity of glass transition | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | diffusivity, viscous flow, fractional Stokes-Einstein law, cooperativity | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
Ikeda, Masahiro
× Ikeda, Masahiro× Aniya, Masaru |
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| 別言語の著者 |
Ikeda, Masahiro
× Ikeda, Masahiro× 安仁屋, 勝 |
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| 内容記述 | ||||||
| 内容記述 | In structurally disordered glass-forming liquids, the Stokes-Einstein (SE) law for translational diffusivity is violated, in particular, in the proximity of the glass transition temperature. Usually, the violation of the SE law is explained as due to the decoupling of the diffusivity from the viscous flow. Meanwhile, one of the prominent features observed in the supercooled liquids is the drastic increase of the viscosity with the decrease of temperature. The origin of the increase of the viscosity is attributed to the increase of the molecular motion cooperativity. In the present study, it is shown that the translational diffusivity of glass-forming liquids can be correlated with the cooperativity involved in the thermally activated viscous flow. In the present analysis, the cooperativity is defined in the framework of the bond strength-coordination number fluctuation (BSCNF) model of the viscosity. The result of the analysis suggests that the translational diffusivity is driven by the bond-breaking and bond-switching between the structural units that compose the network structure. | |||||
| 書誌情報 |
Journal of Non-Crystalline Solids 巻 383, p. 44-48, 発行年 2014-01-01 |
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| ISSN | ||||||
| 収録物識別子 | 00223093 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 関連識別子 | 10.1016/j.jnoncrysol.2013.04.004 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 193513 bytes | ||||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 431 | |||||
| 出版者 | ||||||
| 出版者 | Elsevier B.V. | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文(Article) | |||||
| 資源タイプ・ローカル | ||||||
| 雑誌掲載論文 | ||||||
| 資源タイプ・NII | ||||||
| Journal Article | ||||||
| 資源タイプ・DCMI | ||||||
| text | ||||||
| 資源タイプ・ローカル表示コード | ||||||
| 01 | ||||||
| URL | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | http://www.sciencedirect.com/science/article/pii/S0022309313001804 | |||||
| コメント | ||||||
| The XIII International Conference on the Physics of Non-Crystalline Solids | ||||||
| コメント | ||||||
| 【著者所属】池田昌弘：福井工業高等専門学校 / 安仁屋勝：熊本大学大学院自然科学研究科(理学系)物理科学 | ||||||
