High-frequency capillary waves at a liquid gallium surface have been studied by means of quasi-elastic light-scattering spectroscopy. The observed frequencies and damping constants of waves differed greatly from the classical theoretical treatment of a liquid Ga surface as that of a simple liquid. This effect was explained in terms of the presence of the surface layer, possessing visco-elastic properties which were, in turn, extracted, for the first time, from the fit of experimental spectra with an appropriate theoretical form. A negative value of the surface dilational viscosity has been derived for all wavenumbers studied and the effect of the visco-elasticity on the strong coupling and mixing between the capillary and dilational mode on the surface of liquid Ga has been demonstrated.
No takes yet. Share an insight, caveat, or question.
Kolevzon et al. (1996) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: