| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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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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