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9 papers · 2 filters
Nonlinear screening and gas-liquid separation in suspensions of charged colloids
Bas Zoetekouw, Rene van Roij
We calculate phase diagrams of charged colloidal spheres (valency and radius ) in a 1:1 electrolyte from multi-centered nonlinear Poisson-Boltzmann theory. Our theory takes…
Universal Anisotropy in Force Networks under Shear
Srdjan Ostojic, Thijs J. H. Vlugt, Bernard Nienhuis
Scaling properties of patterns formed by large contact forces are studied as a function of the applied shear stress, in two-dimensional static packings generated from the force net…
Gas-liquid phase separation in oppositely charged colloids: stability and interfacial tension
Andrea Fortini, Antti-Pekka Hynninen, Marjolein Dijkstra
We study the phase behavior and the interfacial tension of the screened Coulomb (Yukawa) restricted primitive model (YRPM) of oppositely charged hard spheres with diameter s using…
The isotropic-nematic interface in suspensions of hard rods: Mean-field properties and capillary waves
S. Wolfsheimer, C. Tanase, K. Shundyak +2
We present a study of the isotropic-nematic interface in a system of hard spherocylinders. First we compare results from Monte Carlo simulations and Onsager density functional theo…
Phase behavior of hard spheres confined between parallel hard plates: Manipulation of colloidal crystal structures by confinement
Andrea Fortini, Marjolein Dijkstra
We study the phase behavior of hard spheres confined between two parallel hard plates using extensive computer simulations. We determine the full equilibrium phase diagram for arbi…
Phase behavior and structure of model colloid-polymer mixtures confined between two parallel planar walls
Andrea Fortini, Matthias Schmidt, Marjolein Dijkstra
Using Gibbs ensemble Monte Carlo simulations and density functional theory we investigate the fluid-fluid demixing transition in inhomogeneous colloid-polymer mixtures confined bet…