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Issue 21, 2015
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Self-assembly of active attractive spheres

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Abstract

We study the self-assembly of a system of self-propelled, Lennard-Jones particles using Brownian dynamics simulations. We examine the state diagrams of the system for different rotational diffusion coefficients of the self-propelled motion of the particles. For fast rotational diffusion, the state diagram exhibits a strong similarity to that of the equilibrium Lennard-Jones fluid. As we decrease the rotational diffusion coefficient, the state diagram is slowly transformed. Specifically, the liquid–gas coexistence region is gradually replaced by a highly dynamic percolating network state. We find significant local alignment of the particles in the percolating network state despite the absence of aligning interactions, and propose a simple mechanism to justify the formation of this novel state.

Graphical abstract: Self-assembly of active attractive spheres

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Supplementary files

Article information


Submitted
16 Jan 2015
Accepted
24 Mar 2015
First published
27 Mar 2015

This article is Open Access

Soft Matter, 2015,11, 4158-4166
Article type
Paper
Author version available

Self-assembly of active attractive spheres

V. Prymidis, H. Sielcken and L. Filion, Soft Matter, 2015, 11, 4158
DOI: 10.1039/C5SM00127G

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