2010 Fiscal Year Final Research Report
Dynamics of interfaces on fluid systems with large fluctuations
| Project/Area Number |
20540396
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biophysics/Chemical physics
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| Research Institution | Hiroshima Institute of Technology |
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Principal Investigator |
OHMASA Yoshinori Hiroshima Institute of Technology, 工学部, 准教授 (30301229)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 界面のダイナミクス / 表面張力波 / 分散関係 / ゆらぎ / イオン液体 / 表面局在モード / バルク・シアモード / 部分分数展開 |
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| Research Abstract |
We studied surface waves on the liquids with large fluctuations, such as room temperature ionic liquids (RTILs), by using dynamic light scattering. We found that the surface waves on RTILs are systematically affected by both Coulomb and van der Waals interactions. We also found that the surface waves on RTILs transform from damped oscillation to overdamped behavior. We observed for the first time the fast and the slow damping modes in the overdamped region and bulk shear mode in the damped oscillator region near the critical damping. In addition, we studied the surface waves on the viscoelastic liquids theoretically, and details of the cross over between the capillary waves and the elastic wave modes and their dispersion relations were made clear.
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[Presentation] 溶融NaI中の光学モード2010
Author(s)
細川伸也,乾雅祝,松田和博,梶原行夫,大政義典,F.Demmel,W.-C.Pilgrim,筒井智嗣,A.Q.R.Baron
Organizer
日本物理学会
Place of Presentation
岡山大
Year and Date
20100300
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