Universal reduction of pressure between charged surfaces by long-wavelength surface charge modulation

D. B. Lukatsky, S. A. Safran

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

We predict theoretically that long-wavelength surface charge modulations universally reduce the pressure between the charged surfaces with counterions compared with the case of uniformly charged surfaces with the same average surface charge density. The physical origin of this effect is the fact that surface charge modulations always lead to enhanced counterion localization near the surfaces, and hence, fewer charges at the midplane. We confirm the last prediction with Monte Carlo simulations.

Original languageEnglish
Pages (from-to)629-635
Number of pages7
JournalEPL
Volume60
Issue number4
DOIs
StatePublished - 1 Nov 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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