Screening in Yukawa fluid mixtures

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dc.creatorArcher, A. J.
dc.creatorHopkins, P.
dc.creatorEvans, R.
dc.date2006-06-28
dc.date.accessioned2026-07-07T07:39:00Z
dc.date.available2026-07-07T07:39:00Z
dc.descriptionThe effective pair potential between mesoscopic charged particles in a neutralising background medium takes a Yukawa form $\exp(-λr)/r$ with screening length $λ^{-1}$. We consider a dilute suspension of such Yukawa particles dispersed in a solvent with correlation length $ξ<λ^{-1}$ and show that the Yukawa interaction is `screened' if the pair potentials between solvent particles exhibit Yukawa decay with the same screening length $λ^{-1}$. However, if the solvent pair potentials are shorter ranged than the solute Yukawa potentials, then the effective potential between pairs of solute particles is `unscreened', i.e. the effective potential between the solute particles is equal to the bare potential at large particle separations.
dc.description4 pages, 2 figures, accepted for publication in Phys. Rev. E
dc.identifierhttps://arxiv.org/abs/cond-mat/0606718
dc.identifierhttp://arxiv.org/abs/cond-mat/0606718
dc.identifierPhys. Rev. E 74 010402 (2006)
dc.identifierdoi:10.1103/PhysRevE.74.010402
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/121298
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleScreening in Yukawa fluid mixtures
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