Driven Magnetic Particles on a Fluid Surface: Pattern Assisted Surface Flows

by: M Belkin, A Snezhko, IS Aranson, WK Kwok

Physical Review Letters, Vol. 99, No. 15. (2007)

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Abstract

Magnetic microparticles suspended on the liquid-air interface and subjected to an alternating magnetic field exhibit spontaneous formation of dynamic localized snake patterns. These patterns are accompanied by four large-scale hydrodynamic vortices located at the opposite ends of the snake patterns. We report detailed studies of these large-scale vortices and their relationship to the collective response of magnetic particles in the presence of an alternating magnetic field. We present a model based on the amplitude equation for surface waves coupled to the large-scale hydrodynamic mean flow equation. The model describes both the formation of the dynamic snake patterns and the induced structure of the experimentally observed hydrodynamic flows.

@article{citeulike:2552556, abstract = {Magnetic microparticles suspended on the liquid-air interface and subjected to an alternating magnetic field exhibit spontaneous formation of dynamic localized snake patterns. These patterns are accompanied by four large-scale hydrodynamic vortices located at the opposite ends of the snake patterns. We report detailed studies of these large-scale vortices and their relationship to the collective response of magnetic particles in the presence of an alternating magnetic field. We present a model based on the amplitude equation for surface waves coupled to the large-scale hydrodynamic mean flow equation. The model describes both the formation of the dynamic snake patterns and the induced structure of the experimentally observed hydrodynamic flows.}, author = {Belkin, M. and Snezhko, A. and Aranson, I. S. and Kwok, W. K. }, citeulike-article-id = {2552556}, doi = {10.1103/PhysRevLett.99.158301}, journal = {Physical Review Letters}, keywords = {2007, surface}, number = {15}, posted-at = {2008-03-18 19:26:55}, priority = {2}, publisher = {APS}, title = {Driven Magnetic Particles on a Fluid Surface: Pattern Assisted Surface Flows}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000099000015158301000001\&idtype=cvips\&gifs=yes}, volume = {99}, year = {2007} }

RIS record

TY - JOUR ID - citeulike:2552556 L3 - citeulike-article-id:2552556 TI - Driven Magnetic Particles on a Fluid Surface: Pattern Assisted Surface Flows JF - Physical Review Letters VL - 99 IS - 15 PB - APS N2 - Magnetic microparticles suspended on the liquid-air interface and subjected to an alternating magnetic field exhibit spontaneous formation of dynamic localized snake patterns. These patterns are accompanied by four large-scale hydrodynamic vortices located at the opposite ends of the snake patterns. We report detailed studies of these large-scale vortices and their relationship to the collective response of magnetic particles in the presence of an alternating magnetic field. We present a model based on the amplitude equation for surface waves coupled to the large-scale hydrodynamic mean flow equation. The model describes both the formation of the dynamic snake patterns and the induced structure of the experimentally observed hydrodynamic flows. KW - 2007 KW - surface AU - Belkin, M AU - Snezhko, A AU - Aranson, IS AU - Kwok, WK PY - 2007/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000099000015158301000001&idtype=cvips&gifs=yes ER -

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