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Translationally invariant colloidal crystal templates

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Abstract

We show that dynamic, feed-back controlled optical traps, whose positions depend on the instantaneous local configuration of particles in a pre-determined way, can stabilise colloidal particles in finite lattices of any given symmetry. Unlike in a static template, the crystal so formed is invariant under uniform translations and retains all possible zero energy modes. We demonstrate this in silico by stabilising the unstable two-dimensional square lattice in a model soft solid with isotropic interactions.

Graphical abstract: Translationally invariant colloidal crystal templates

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Publication details

The article was received on 18 Sep 2017, accepted on 28 Nov 2017 and first published on 29 Nov 2017


Article type: Paper
DOI: 10.1039/C7SM01877K
Citation: Soft Matter, 2018, Advance Article
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    Translationally invariant colloidal crystal templates

    P. Popli, S. Ganguly and S. Sengupta, Soft Matter, 2018, Advance Article , DOI: 10.1039/C7SM01877K

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