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Journal Articles Applied Physics Letters Year : 2020

Magnetohydrodynamic self-propulsion of active matter agents

Abstract

Self-propelled particles, based on the magnetohydrodynamic acceleration of the surrounding fluid, are proposed for application as active matter agents. When the particle is resonantly excited by an electromagnetic wave, the scattered electric field induces currents in the surrounding fluid, which interact with the scattered magnetic field, thus producing a thrust. The time-averaged force is generally nonzero and can provide steady motion. Both orientation of the particle and direction of motion can be controlled by the radiation frequency and polarization. The concept has been studied analytically and through simulations showing its feasibility.
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Dates and versions

hal-03043513 , version 1 (19-12-2020)

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Alexander Zharov, Vanessa Fierro, Alain Celzard. Magnetohydrodynamic self-propulsion of active matter agents. Applied Physics Letters, 2020, 117 (10), pp.104101. ⟨10.1063/5.0018692⟩. ⟨hal-03043513⟩
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