Attractions between Like-Charged Surfaces with Dumbbell-Shaped Counterions

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We study the effect of dumbbell-like counterions on the interactions between similarly charged surfaces. Via a systematic study using Monte Carlo simulations and field theory, we fully consider electrostatic correlations and ion structure and find that their intricate coupling determines the equilibrium phase behaviors. In particular, an energetic bridging mechanism is revealed to cause surface attractions for a finite range of surface separations, even in the Poisson-Boltzmann limit.
Publisher
AMER PHYSICAL SOC
Issue Date
2008-11
Language
English
Article Type
Article
Keywords

POLYELECTROLYTE-MACROION COMPLEXES; FORCES; DNA; CATIONS; ELECTROLYTES; CONDENSATION; POLYAMINES; CHAIN; IONS

Citation

PHYSICAL REVIEW LETTERS, v.101, no.20

ISSN
0031-9007
DOI
10.1103/PhysRevLett.101.208305
URI
http://hdl.handle.net/10203/86698
Appears in Collection
NT-Journal Papers(저널논문)
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