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Issue 43, 2014
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Periodic average structures of colloidal quasicrystals

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Abstract

We experimentally study the phase behaviour of a charge-stabilized two-dimensional colloidal monolayer which is subjected to a one-dimensional quasiperiodic substrate potential. Upon increasing the laser intensity, we observe a transition from a periodic to a quasiperiodic state. It proceeds via the formation of an intermediate periodic average structure (PAS) which is related to the quasiperiodic lattice by a bounded 1–1 mapping. Because PAS can transform to crystals and quasicrystals by minute particle displacements, they provide a mechanism to allow for interesting insights into the relationship between periodic and quasiperiodic order.

Graphical abstract: Periodic average structures of colloidal quasicrystals

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Article information


Submitted
21 Jul 2014
Accepted
16 Sep 2014
First published
17 Sep 2014

Soft Matter, 2014,10, 8705-8710
Article type
Paper
Author version available

Periodic average structures of colloidal quasicrystals

L. Zaidouny, T. Bohlein, J. Roth and C. Bechinger, Soft Matter, 2014, 10, 8705
DOI: 10.1039/C4SM01607F

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