Emergent phenomena in far-from-equilibrium magnetic granular ensembles at a liquid-air interface

Alexey Snezhko, Igor Aronson, Maxim Belkin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Remarkable nontrivially ordered self-assembled structures are formed in ensembles of magnetic microparticles suspended at a liquid/air interface and energized by an alternating magnetic field. These dynamic structures emerge as a result of a competition between magnetic and hydrodynamic forces. Each structure (snake) is accompanied by a hydrodynamic vortex quadrupole. Under certain conditions snakes spontaneously break the symmetry of surface flows and turn into swimmers. Observed phenomena have been successfully described by a phenomenological model.

Original languageEnglish (US)
Title of host publicationPowders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media
Pages143-146
Number of pages4
Volume1145
DOIs
StatePublished - Nov 27 2009
Event6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009 - Golden, CO, United States
Duration: Jul 13 2009Jul 17 2009

Other

Other6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009
CountryUnited States
CityGolden, CO
Period7/13/097/17/09

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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