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PhysRevLett.109.115705.pdf | 665.23 kB | Adobe PDF | 見る/開く |
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dc.contributor.author | Saito, Makina | en |
dc.contributor.author | Kitao, Shinji | en |
dc.contributor.author | Kobayashi, Yasuhiro | en |
dc.contributor.author | Kurokuzu, Masayuki | en |
dc.contributor.author | Yoda, Yoshitaka | en |
dc.contributor.author | Seto, Makoto | en |
dc.contributor.alternative | 瀬戸, 誠 | ja |
dc.date.accessioned | 2012-10-10T02:02:38Z | - |
dc.date.available | 2012-10-10T02:02:38Z | - |
dc.date.issued | 2012-09-14 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2433/159735 | - |
dc.description | 過冷却液体中のミクロなスケールでの固体的振る舞いの観測に成功 -液体状態の基礎理解とガラス転移の解明に期待-. 京都大学プレスリリース. 2012-09-15. | ja |
dc.description.abstract | We mapped the relaxation times of inter- and intramolecular correlations in o-terphenyl by a quasielastic scattering method using nuclear resonant scattering of synchrotron radiation. From the obtained map, we found that the slow β process is decoupled from the α process at 278 K, and this temperature is clearly below the previous decoupling temperature of 290 K, at which the α-relaxation dynamics changes. Then, it was also concluded that sufficient solidlike condition achieved by further cooling from 290 K is required to decouple the slow β process from the α process and, due to the difference of the length scales between the α and the slow β processes, these two averaged relaxation times <γ> are concluded not to cross as an extrapolation assumed so far. Furthermore, evidence of the restricted dynamics of the slow β process could be obtained as an anomalous momentum transfer (q) dependence of <γ>(<γ> ∝ q-2.9) at 265 K, observed at q values of 18–48 nm-1. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society (APS) | en |
dc.rights | © 2012 American Physical Society | en |
dc.title | Slow Processes in Supercooled o-Terphenyl: Relaxation and Decoupling | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.ncid | AA00773679 | - |
dc.identifier.jtitle | Physical Review Letters | en |
dc.identifier.volume | 109 | - |
dc.identifier.issue | 11 | - |
dc.relation.doi | 10.1103/PhysRevLett.109.115705 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 115705 | - |
dc.identifier.pmid | 23005649 | - |
dc.relation.url | https://www.kyoto-u.ac.jp/static/ja/news_data/h/h1/news6/2012/120915_1.htm | - |
dcterms.accessRights | open access | - |
dc.identifier.pissn | 0031-9007 | - |
dc.identifier.eissn | 1079-7114 | - |
出現コレクション: | 学術雑誌掲載論文等 |
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