Effective forces between macroions: a Monte Carlo study
Irene D'Amico and
Hartmut Löwen
Physica A: Statistical Mechanics and its Applications, 1997, vol. 237, issue 1, 25-30
Abstract:
The effective forces between two spherical highly charged colloidal macroions are calculated within the primitive model of strongly asymmetric electrolytes using Monte Carlo simulations. For typical parameters corresponding to aqueous suspensions of polystyrene spheres, the forces are found to be repulsive over a broad range of distances between the macroions. Our results are in semi-quantitative agreement with different variants of linear screening theory. A recently developed cumulant expansion, however, fails in predicting the correct sign of the effective forces.
Keywords: Charged colloids; Effective interaction; Counterion screening; Primitive model; Monte Carlo simulation (search for similar items in EconPapers)
Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:237:y:1997:i:1:p:25-30
DOI: 10.1016/S0378-4371(96)00383-4
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