Dynamic self-assembly and patterns in electrostatically driven granular media

Details Dynamic self-assembly and patterns in electrostatically driven granular media Dynamic self-assembly and patterns in electrostatically driven granular media

2002-11-05

arxiv.org/abs/cond-mat/0211070v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 6 figures, submitted to Phys.Rev.Lett

Scientific paper

10.1103/PhysRevLett.90.114301

We show that granular media consisting of metallic microparticles immersed in a poorly conducting liquid in strong DC electric field self-assemble a rich variety of novel phases. These phases include static precipitate: honeycombs and Wigner crystals; and novel dynamic condensate: toroidal vortices and pulsating rings. The observed structures are explained by the interplay between charged granular gas and electrohydrodynamic convective flows in the liquid.

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