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

Alexey Snezhko; Igor Aronson; Maxim Belkin

doi:10.1063/1.3179849

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 proceeding › Conference 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 language	English (US)
Title of host publication	Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media
Pages	143-146
Number of pages	4
Volume	1145
DOIs	https://doi.org/10.1063/1.3179849
State	Published - Nov 27 2009
Event	6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009 - Golden, CO, United States Duration: Jul 13 2009 → Jul 17 2009

Other

Other	6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009
Country/Territory	United States
City	Golden, CO
Period	7/13/09 → 7/17/09

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.3179849

Cite this

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title = "Emergent phenomena in far-from-equilibrium magnetic granular ensembles at a liquid-air interface",

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.",

author = "Alexey Snezhko and Igor Aronson and Maxim Belkin",

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booktitle = "Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media",

note = "6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009 ; Conference date: 13-07-2009 Through 17-07-2009",

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Snezhko, A, Aronson, I & Belkin, M 2009, Emergent phenomena in far-from-equilibrium magnetic granular ensembles at a liquid-air interface. in Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media. vol. 1145, pp. 143-146, 6th International Conference on Micromechanics of Granular Media, Powders and Grains 2009, Golden, CO, United States, 7/13/09. https://doi.org/10.1063/1.3179849

Emergent phenomena in far-from-equilibrium magnetic granular ensembles at a liquid-air interface. / Snezhko, Alexey; Aronson, Igor; Belkin, Maxim.
Powders and Grains 2009 - Proceedings of the 6th International Conference on Micromechanics of Granular Media. Vol. 1145 2009. p. 143-146.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - 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.

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

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