| Issue |
EPL
Volume 140, Number 1, October 2022
|
|
|---|---|---|
| Article Number | 17001 | |
| Number of page(s) | 7 | |
| Section | Biological and soft matter physics | |
| DOI | https://doi.org/10.1209/0295-5075/ac94f5 | |
| Published online | 10 October 2022 | |
Integral equation study of effective attraction between like-charged particles mediated by cations: Comparison between IPY2 and HNC closures
1 Department of Chemistry, Kyushu University - Fukuoka 819-0395, Japan
2 Matsuyama Minami High School - Ehime 790-0023, Japan
3 Department of Physics, Ehime University - Ehime 790-8577, Japan
(a) E-mail: rakiyama@chem.kyushu-univ.jp (corresponding author)
(b) E-mail: miyata.tatsuhiko.mf@ehime-u.ac.jp (corresponding author)
Received: 18 July 2022
Accepted: 26 September 2022
Effective interactions between like-charged particles immersed in an electrolyte solution were calculated using two integral equation theories, hypernetted-chain (HNC)-Ornstein-Zernike (OZ) and ionic Percus-Yevick 2 (IPY2)-OZ. When the HNC-OZ theory was adopted, the electrolyte concentration dependence of the effective interaction showed a reentrant behavior. By contrast, the IPY2-OZ theory did not indicate the behavior. Monte Carlo simulations were performed for one of the model systems, and the results agreed qualitatively with those calculated using the HNC-OZ theory.
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