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Issue 14, 2009
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Defect interactions in two-dimensional colloidal crystals: vacancy and interstitial strings

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Abstract

We study the effective interactions of interstitials and vacancies in two-dimensional colloidal crystals with Monte Carlo simulations. For both types of defects, the interactions are strongly attractive leading to the formation of defect strings. These highly mobile strings, two-dimensional analogs of prismatic dislocation loops observed in irradiated metals, arise from forces mediated by the lattice that cannot be reduced to effective pair interactions between defects.

Graphical abstract: Defect interactions in two-dimensional colloidal crystals: vacancy and interstitial strings

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Article information


Submitted
13 Feb 2009
Accepted
21 Apr 2009
First published
28 May 2009

Soft Matter, 2009,5, 2752-2758
Article type
Paper

Defect interactions in two-dimensional colloidal crystals: vacancy and interstitial strings

W. Lechner and C. Dellago, Soft Matter, 2009, 5, 2752
DOI: 10.1039/B903091C

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