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Critical Casimir forces in colloidal suspensions on chemically patterned surfaces
F. Soyka, O. Zvyagolskaya, C. Hertlein +2
We investigate the behavior of colloidal particles immersed in a binary liquid mixture of water and 2,6-lutidine in the presence of a chemically patterned substrate. Close to the c…
Phonon dispersion curves of two-dimensional colloidal crystals: on the wavelength dependence of friction
Joerg Baumgartl, Julian Dietrich, Jure Dobnikar +2
Digital video-microscopy measurements are reported of both elastic bandstructures and overdamped phonon decay times in two-dimensional colloidal crystals. Both quantities together…
Three-body interactions in colloidal systems
J. Dobnikar, M. Brunner, H. H. von Grünberg +1
We present the first direct measurement of three-body interactions in a colloidal system comprised of three charged colloidal particles. Two of the particles have been confined by…
Three- and four-body interactions in colloidal systems
J. Dobnikar, M. Brunner, Jörg Baumgartl +2
Three-body and four-body interactions have been directly measured in a colloidal system comprised of three (or four) charged colloidal particles. Two of the particles have been con…
Direct measurement of three-body interactions
M. Brunner, J. Dobnikar, H. H. von Grünberg +1
Three-body interactions have been measured among three charged colloidal particles in deionized solvent. Two of the particles have been confined to an optical line-trap while the t…