Translationally invariant colloidal crystal templates.
basic_science · Level V
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- Record sourced from PubMed, PMID 29210439.
- Also identified by DOI 10.1039/c7sm01877k.
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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.