Phase separation of two-dimensional Coulombic crystals of mesoscale dipolar particles from mesoscale polarizable “solvent”

Abstract

This letter describes the formation of two-dimensional 2D crystals of dipolar particles TN made of electrostatically charged, joined, millimeter-scale Teflon T and nylon-6,6 N spheres, and the separation of these crystals, as a distinct phase, from a mixture of TN and similar, capacitively charged particles that were coated with gold Au2 . The extent of separation increased with increasing amplitude of agitation, and with decreasing density of particles. Above a threshold in the amplitude of agitation, the crystals broke apart and the particles remixed. This system is a 2D model of the nucleation of crystals of polar molecules in a polarizable liquid. © 2009 American Institute of Physics. DOI: 10.1063/1.3052616

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@inproceedings{Kaufman2009PhaseSO, title={Phase separation of two-dimensional Coulombic crystals of mesoscale dipolar particles from mesoscale polarizable “solvent”}, author={George K. Kaufman and Meital Reches and Samuel W Thomas and Ji Feng and Bryan F Shaw and George M. Whitesides}, year={2009} }