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The effect of direct interactions on Brownian diffusion

By C. van den Broeck, F. Lostak and H.N.W. Lekkerkerker

Abstract

The effect of direct interactions between suspended particles on their diffusion coefficient is investigated starting from the generalized Einstein relation. It is shown that an attractive potential added to the hard core repulsion leads to a decrease of the diffusion coëfficiënt, whereas a repulsive term has the opposite effect. Simple examples of attractive and repulsive potentials are considered in some detail. Using these results the possibility to obtain information on the interaction potential between suspended particles from their diffusion coefficient is discussed

Topics: Scheikunde
Year: 1981
OAI identifier: oai:dspace.library.uu.nl:1874/22300

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