Abstract
It is experimentally shown that a tenfold-hundredfold increase in the effective diffusion coefficient along the direction perpendicular to an applied electric field takes place in various emulsions and suspensions. It is caused by electrophoretic motion of particles. In inverse emulsions and many suspensions, only a certain fraction of dispersed material is contained in particles whose average radius is determined by the dynamic light scattering method. It is shown that the average coherence time of light scattered by silicon particle suspensions at a constant laser power depends on the beamdiameter. This means that semiconductor particles are characterized by strong nonlinearity.
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Original Russian Text © S.V. Krivokhizha, E.S. Lapteva, L.L. Chaikov, D.M. Shapovalova, 2011, published in Kratkie Soobshcheniya po Fizike, 2011, Vol. 38, No. 4, pp. 32–46.
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Krivokhizha, S.V., Lapteva, E.S., Chaikov, L.L. et al. Features of the motion of particles suspended in liquid under an applied field. Bull. Lebedev Phys. Inst. 38, 111–119 (2011). https://doi.org/10.3103/S1068335611040051
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DOI: https://doi.org/10.3103/S1068335611040051