Weak long-ranged Casimir attraction in colloidal crystals

A. Gopinathan, T. Zhou, S. N. Coppersmith, L. P. Kadanoff, D. G. Grier

    Research output: Contribution to journalArticle

    Abstract

    We investigate the influence of geometric confinement on the free energy of an idealized model for charge-stabilized colloidal suspensions. The mean-field Poisson-Boltzmann formulation for this system predicts pure repulsion among macroionic colloidal spheres. Fluctuations in the simple ions' distribution provide a mechanism for the macroions to attract each other at large separations. Although this Casimir interaction is long-ranged, it is too weak to influence colloidal crystals' properties.

    Original languageEnglish (US)
    Pages (from-to)451-457
    Number of pages7
    JournalEPL
    Volume57
    Issue number3
    DOIs
    StatePublished - 2002

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    ion distribution
    attraction
    colloids
    free energy
    formulations
    crystals
    interactions

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Gopinathan, A., Zhou, T., Coppersmith, S. N., Kadanoff, L. P., & Grier, D. G. (2002). Weak long-ranged Casimir attraction in colloidal crystals. EPL, 57(3), 451-457. https://doi.org/10.1209/epl/i2002-00481-1

    Weak long-ranged Casimir attraction in colloidal crystals. / Gopinathan, A.; Zhou, T.; Coppersmith, S. N.; Kadanoff, L. P.; Grier, D. G.

    In: EPL, Vol. 57, No. 3, 2002, p. 451-457.

    Research output: Contribution to journalArticle

    Gopinathan, A, Zhou, T, Coppersmith, SN, Kadanoff, LP & Grier, DG 2002, 'Weak long-ranged Casimir attraction in colloidal crystals', EPL, vol. 57, no. 3, pp. 451-457. https://doi.org/10.1209/epl/i2002-00481-1
    Gopinathan A, Zhou T, Coppersmith SN, Kadanoff LP, Grier DG. Weak long-ranged Casimir attraction in colloidal crystals. EPL. 2002;57(3):451-457. https://doi.org/10.1209/epl/i2002-00481-1
    Gopinathan, A. ; Zhou, T. ; Coppersmith, S. N. ; Kadanoff, L. P. ; Grier, D. G. / Weak long-ranged Casimir attraction in colloidal crystals. In: EPL. 2002 ; Vol. 57, No. 3. pp. 451-457.
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