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arXiv · cond-mat/0504434

Attractions between charged colloids at water interfaces

M. Oettel·A. Dominguez·S. Dietrich
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Abstract

The effective potential between charged colloids trapped at water interfaces is analyzed. It consists of a repulsive electrostatic and an attractive capillary part which asymptotically both show dipole--like behavior. For sufficiently large colloid charges, the capillary attraction dominates at large separations. The total effective potential exhibits a minimum at intermediate separations if the Debye screening length of water and the colloid radius are of comparable size.

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M. Oettel, A. Dominguez, S. Dietrich. 2005-08-01. Attractions between charged colloids at water interfaces. https://doi.org/10.1088/0953-8984%2F17%2F32%2Fl02

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