Electric-field induced capillary interaction of charged particles at a polar interface
Abstract
We study the electric-field induced capillary interaction of charged particles at a polar interface. The algebraic tails of the electrostatic pressure of each charge results in a deformation of the interface u -4. The resulting capillary interaction is repulsive and varies as -6 with the particle distance. As a consequence, electric-field induced capillary forces cannot be at the origin of the secondary minimum observed recently for charged PMMA particles at on oil-water interface.
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