Jeffrey Christopher Everts (Author)

Abstract

A semianalytical approach is developed to calculate the effective pair potential of rigid arbitrarily shaped macroions with a nonvanishing particle volume, valid within linear screening theory and the mean-field approximation. The essential ingredient for this framework is a mapping of the particle to a singular charge distribution with adjustable effective charge and shape parameters determined by the particle surface electrostatic potential. For charged spheres, this method reproduces the well-known Derjaguin- andau-Verwey-Overbeek (DLVO) potential. Further exemplary benchmarks of the method for more complicated cases, like tori, triaxial ellipsoids, and additive torus-sphere mixtures, leads to accurate closed-form integral expressions for all particle separations and orientations. The findings are relevant for determining the phase behavior of macroions with experiments and simulations for various particle shapes.

Keywords

fizika mehke snovi;elektrostatika;elektrostatski potencial;makroioni;soft matter physics;electrostatics;electrostatic potential;macroions;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FMF - Faculty of Mathematics and Physics
UDC: 537.2
COBISS: 23873539 Link will open in a new window
ISSN: 2643-1564
Views: 386
Downloads: 193
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary keywords: fizika mehke snovi;elektrostatika;elektrostatski potencial;makroioni;
Pages: str. 033144-1-033144-13
Volume: ǂVol. ǂ2
Issue: ǂiss. ǂ3
Chronology: 2020
DOI: 10.1103/PhysRevResearch.2.033144
ID: 11924506