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Tailoring of phononic band structures in colloidal crystals
Joerg Baumgartl, Maria Zvyagolskaya, Clemens Bechinger
We report an experimental study of the elastic properties of a two-dimensional (2D) colloidal crystal subjected to light-induced substrate potentials. In agreement with recent theo…
Characterizing Potentials by a Generalized Boltzmann Factor
V. Blickle, T. Speck, U. Seifert +1
Based on the concept of a nonequilibrium steady state, we present a novel method to experimentally determine energy landscapes acting on colloidal systems. By measuring the station…
The Einstein relation generalized to non-equilibrium
V. Blickle, T. Speck, C. Lutz +2
The Einstein relation connecting the diffusion constant and the mobility is violated beyond the linear response regime. For a colloidal particle driven along a periodic potential i…
Experimental observation of structural crossover in binary mixtures of colloidal hard spheres
Jörg Baumgartl, Roel P. A. Dullens, Marjolein Dijkstra +2
Using confocal-microscopy we investigate the structure of binary mixtures of colloidal hard spheres with size ratio q=0.61. As a function of the packing fraction of the two particl…