2017 Fiscal Year Final Research Report
Fluctuation and Rheology of Soft Matter in Nonequilibrium Steady States
| Project Area | Synergy of Fluctuation and Structure:Foundation of Universal Laws in Nonequilibrium Systems |
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| Project/Area Number |
25103006
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
長屋 智之 大分大学, 理工学部, 教授 (00228058)
佐藤 勝彦 北海道大学, 電子科学研究所, 准教授 (90513622)
日高 芳樹 九州大学, 工学研究院, 助教 (70274511)
中垣 俊之 北海道大学, 電子科学研究所, 教授 (70300887)
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| Project Period (FY) |
2013-06-28 – 2018-03-31
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| Keywords | ソフトマター物理 / せん断流 / ブラウン運動 / 液晶 / 高分子 / 非ニュートン流体 / マイクロレオロジー |
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| Outline of Final Research Achievements |
Shear flow can change not only the structure of soft matter but also the nature of fluctuation and response by breaking the time-reversal symmetry. We constructed a system combining a rheometer and a confocal laser scanning microscope to mainly observe non-equilibrium structures and fluctuations under shear flow. We successfully observed anomalous fluctuation and response in nematic liquid crystal and colloidal systems, which are brought about by non-conservative forces characteristic to non-equilibrium systems. As for the liquid crystal, we analyzed the results in terms of the Ericksen-Leslie theory and furthermore derived a modified fluctuation-dissipation relation.
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| Free Research Field |
ソフトマター物理学
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