Potential effects on effective attraction between probes diffusing in colloidal crystal

Considering the significant influence of interparticle potentials on traditional depletion forces, we here employ computer simulations to investigate how varying potentials between particles affect the effective interaction of probes diffusing freely in a 2D colloidal crystal. Our results reveal that attractive potentials between the background particles and probes significantly modify the interprobe effective interactions, whereas long-range repulsive tails among the background particles have minimal impact. Furthermore, we observe contrary temperature dependencies of the effective force for soft and stiff repulsions between the background particles. These findings provide deeper insights into how direct interparticle potentials shape entropic-dominated effective forces mediated by colloidal crystals.

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Publication Details

Journal
Physical review. E
Published
2024-10-23
DOI
https://doi.org/10.1103/physreve.110.044607
Primary Topic
Material Dynamics and Properties
Type
article
Field-Weighted Citation Impact
0.00

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article

Potential effects on effective attraction between probes diffusing in colloidal crystal

Xue Zhang, Ning Zheng, Luhui Ning, Mingcheng Yang et al.
Physical review. E
Material Dynamics and Properties
article

Potential effects on effective attraction between probes diffusing in colloidal crystal

Xue Zhang, Ning Zheng, Luhui Ning, Mingcheng Yang, Peng Liu, Wei Liu, Ke Chen, Xiaoting Yu
article en

Abstract

Considering the significant influence of interparticle potentials on traditional depletion forces, we here employ computer simulations to investigate how varying potentials between particles affect the effective interaction of probes diffusing freely in a 2D colloidal crystal. Our results reveal that attractive potentials between the background particles and probes significantly modify the interprobe effective interactions, whereas long-range repulsive tails among the background particles have minimal impact. Furthermore, we observe contrary temperature dependencies of the effective force for soft and stiff repulsions between the background particles. These findings provide deeper insights into how direct interparticle potentials shape entropic-dominated effective forces mediated by colloidal crystals.

Physical review. EVol. 110(4)
Beijing Institute of Technology (CN), Chinese Academy of Sciences (CN), China University of Petroleum, Beijing (CN), Songshan Lake Materials Laboratory (CN), FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ), Institute of Physics (CN), University of Chinese Academy of Sciences (CN)
Bundesanstalt für Straßenwesen, National Natural Science Foundation of China, Science Foundation of China University of Petroleum, Beijing, Beijing Institute of Technology Research Fund Program for Young Scholars
Openalex Percentile: Top 88%
Material Dynamics and Properties
DOISourceOpenAlex
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