2019
DOI: 10.1103/physrevfluids.4.013701
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Quantifying hydrodynamic collective states of magnetic colloidal spinners and rollers

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Cited by 20 publications
(16 citation statements)
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“…It has been reported experimentally and captured by simulations [34,35] that the speed of rolling does not match to the expected speed calculated for the case of no‐slip conditions at the interface. In the limit of no‐slip contact with the surface, the rolling speed V 0 would be V 0 =ω R , where ω = 2πf .…”
Section: Propelling Rotorsmentioning
confidence: 85%
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“…It has been reported experimentally and captured by simulations [34,35] that the speed of rolling does not match to the expected speed calculated for the case of no‐slip conditions at the interface. In the limit of no‐slip contact with the surface, the rolling speed V 0 would be V 0 =ω R , where ω = 2πf .…”
Section: Propelling Rotorsmentioning
confidence: 85%
“…The external AC field is usually applied perpendicular to the surface supporting the particles, Ht=H0sin2πfboldez , to avoid any preferred direction along the surface, see Figure 3(a). The onset of a steady rotation and subsequent rolling of a spherical ferromagnetic particle is associated with a spontaneous symmetry breaking of the clockwise/counter clockwise particle oscillations observed in a certain range of the magnetic field parameters [34,35] . The steady spinning of particles is realized when the following condition is satisfied: trueIm()ν[-p2,2q]-p>0 …”
Section: Propelling Rotorsmentioning
confidence: 99%
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“…active matter | collective behavior | self-organization | multivortex A ctive magnetic colloids represent a versatile synthetic model system to explore emergent collective dynamics and selforganization out of equilibrium (1)(2)(3)(4)(5). The activity in these systems originates from a nontrivial coupling of microscale particle rotation and translation due to a local magnetic torque imposed by an external magnetic field (6,7). In contrast, macroscopic self-organization in most active systems is driven by microscopic translational motion of the constituents (8).…”
mentioning
confidence: 99%