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Statistics of fluctuating colloidal fluid-fluid interfaces

By V.W.A. de Villeneuve, J.M.J. van Leeuwen, W. van Saarloos and H.N.W. Lekkerkerker


Fluctuations of the interface between coexisting colloidal fluid phases have been measured with confocal microscopy. Due to a very low surface tension, the thermal motions of the interface are so slow that a record can be made of the positions of the interface. The theory of the interfacial height fluctuations is developed. For a host of correlation functions, the experimental data are compared with the theoretical expressions. The agreement between theory and experiment is remarkably good

Year: 2008
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