Reentrant network formation in patchy colloidal mixtures under gravity.

Abstract

We study a two-dimensional binary mixture of patchy colloids in sedimentation-diffusion equilibrium using Monte Carlo simulation and Wertheim's theory. By tuning the buoyant masses of the colloids we can control the gravity-induced sequence of fluid stacks of differing density and percolation properties. We find complex stacking sequences with up to four… (More)
DOI: 10.1103/PhysRevE.93.030601

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