Mecke K (2006)
Publication Status: Published
Publication Type: Journal article
Publication year: 2006
Publisher: AMER INST PHYSICS
Book Volume: 125
Journal Issue: 18
DOI: 10.1063/1.2358341
Thermally excited capillary waves at fluid interfaces in binary liquid mixtures exhibit simultaneously both density and composition fluctuations. Based on a density functional theory for inhomogeneous binary liquid mixtures we derive an effective wavelength dependent Hamiltonian for fluid interfaces in these systems beyond the standard capillary-wave model. Explicit expressions are obtained for the surface tension, the bending rigidities, and the coupling constants of compositional capillary waves in terms of the profiles of the two number densities characterizing the mixture. These results lead to predictions for grazing-incidence x-ray scattering experiments at such interfaces. (c) 2006 American Institute of Physics.
APA:
Mecke, K. (2006). Microscopic theory for interface fluctuations in binary liquid mixtures. Journal of Chemical Physics, 125(18). https://dx.doi.org/10.1063/1.2358341
MLA:
Mecke, Klaus. "Microscopic theory for interface fluctuations in binary liquid mixtures." Journal of Chemical Physics 125.18 (2006).
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