Jack O. Law
Phase transitions on non-uniformly curved surfaces: Coupling between phase and location
Law, Jack O.; Dean, Jacob M.; Miller, Mark A.; Kusumaatmaja, Halim
Authors
Jacob M. Dean
Dr Mark Miller m.a.miller@durham.ac.uk
Associate Professor
Professor Halim Kusumaatmaja halim.kusumaatmaja@durham.ac.uk
Professor
Abstract
For particles confined to two dimensions, any curvature of the surface affects the structural, kinetic and thermodynamic properties of the system. If the curvature is non-uniform, an even richer range of behaviours can emerge. Using a combination of bespoke Monte Carlo, molecular dynamics and basin-hopping methods, we show that the stable states of attractive colloids confined to non-uniformly curved surfaces are distinguished not only by the phase of matter but also by their location on the surface. Consequently, the transitions between these states involve cooperative migration of the entire colloidal assembly. We demonstrate these phenomena on toroidal and sinusoidal surfaces for model colloids with different ranges of interactions as described by the Morse potential. In all cases, the behaviour can be rationalised in terms of three universal considerations: cluster perimeter, stress, and the packing of next-nearest neighbours.
Citation
Law, J. O., Dean, J. M., Miller, M. A., & Kusumaatmaja, H. (2020). Phase transitions on non-uniformly curved surfaces: Coupling between phase and location. Soft Matter, 16(34), 8069-8077. https://doi.org/10.1039/d0sm00652a
Journal Article Type | Article |
---|---|
Acceptance Date | Aug 6, 2020 |
Online Publication Date | Aug 7, 2020 |
Publication Date | Sep 14, 2020 |
Deposit Date | Aug 7, 2020 |
Publicly Available Date | Sep 3, 2020 |
Journal | Soft Matter |
Print ISSN | 1744-683X |
Publisher | Royal Society of Chemistry |
Peer Reviewed | Peer Reviewed |
Volume | 16 |
Issue | 34 |
Pages | 8069-8077 |
DOI | https://doi.org/10.1039/d0sm00652a |
Publisher URL | https://doi.or/10.1039/D0SM00652A |
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