Friday, March 5, 2010, 1:30 pm — Bldg. 735 - Conf Rm A
The properties of water in nanoscale confinement have a special significance. When the confining substrate has a hydrophobic nature, the restrictions on the hydrogen-bond network of water induce many interesting properties in confined water. I will discuss dynamical properties and phase transitions of water confined in a quasi-two-dimensional hydrophobic nanopore slit. First, I will show the absence of a diffusion anomaly in the confining direction [1]. Then I will discuss the hydrogen-bond dynamics in bulk and confined water [2]. Finally, I will discuss a novel solid-liquid phase transition in confined water films [3]. When water forms a bilayer, a solid-liquid phase transitions can be either first-order or continuous, depending on density and pressure.
References
[1] S. Han, P. Kumar, and H. E. Stanley, Phys. Rev. E 77, 030201(R) (2008).
[2] S. Han, P. Kumar, and H. E. Stanley, Phys. Rev. E 79, 041202 (2009).
[3] S. Han, M. Y. Choi, P. Kumar, and H. E. Stanley, Nature Physics (submitted).
Hosted by: Alexei Tkachenko
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