Fluctuations and ordering in macroion suspensions

D. B. Lukatsky, S. A. Safran

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We calculate the static properties of macroion density fluctuations in both bulk and in confined, strongly interacting, macroion suspensions (macroions interact via the Derjaguin-Landau-Verwey-Overbeek potential) in terms of a simple density-functional ansatz. We show how to map a strongly interacting suspension to a weakly interacting one and obtain the renormalized charge, diameter and scattering structure factors analytically. The model is extrapolated to predict crystalline order in terns of a Hansen-Verlet-type of criterion as well as an effective hard-sphere crystallization condition, and good agreement with simulations is found. The increase in correlations observed in recent experiments in two, confined layers is demonstrated.

Original languageEnglish GB
Article number011405
Pages (from-to)114051-114055
Number of pages5
JournalPhysical Review E
Issue number1 I
StatePublished - 1 Jan 2001
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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