Multipolar expansion of the electrostatic interaction between charged colloids at interfaces

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dc.creatorDominguez, A.
dc.creatorFrydel, D.
dc.creatorOettel, M.
dc.date2007-06-27
dc.date2007-10-23
dc.date.accessioned2026-07-07T09:49:27Z
dc.date.available2026-07-07T09:49:27Z
dc.descriptionThe general form of the electrostatic potential around an arbitrarily charged colloid at an interface between a dielectric and a screening phase (such as air and water, respectively) is analyzed in terms of a multipole expansion. The leading term is isotropic in the interfacial plane and varies with $d^{-3}$ where $d$ is the in--plane distance from the colloid. The electrostatic interaction potential between two arbitrarily charged colloids is likewise isotropic and $\propto d^{-3}$, corresponding to the dipole--dipole interaction first found for point charges at water interfaces. Anisotropic interaction terms arise only for higher powers $d^{-n}$ with $n \ge 4$.
dc.description6 pages, mathematical details added
dc.identifierhttps://arxiv.org/abs/0706.3977
dc.identifierhttp://arxiv.org/abs/0706.3977
dc.identifierPhys. Rev. E 77, 020401(R) (2008)
dc.identifierdoi:10.1103/PhysRevE.77.020401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/164597
dc.subjectSoft Condensed Matter
dc.titleMultipolar expansion of the electrostatic interaction between charged colloids at interfaces
dc.typetext

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