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26 April 2024 |
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Article overview
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Crystallization dynamics of a single layer complex plasma | | Peter Hartmann
; Angela Douglass
; Jorge C. Reyes
; Lorin S. Matthews
; Truell W. Hyde
; Aniko Kovacs
; Zoltan Donko
; | | Date: |
25 Jun 2010 | | Abstract: | We report a series of complex (dusty) plasma experiments, aimed at the study
of the detailed time evolution of the re-crystallisation process following a
rapid quench of a two dimensional dust liquid. The experiments were accompanied
by large-scale (million particle) molecular dynamics simulations, assuming
Yukawa type inter-particle interaction. Both experiment and simulation show a
$propto t^alpha$ (power law) dependence of the linear crystallite domain size
as measured by the bond-order correlation length, translational correlation
length, dislocation (defect) density, and a direct size measurement algorithm.
The results show two stages of order formation: on short time-scales individual
particle motion dominates; this is a fast process characterized by
$alpha=0.93pm0.1$. At longer time-scales, small crystallites undergo
collective rearrangement, merging into bigger ones, resulting in a smaller
exponent $alpha=0.38pm0.06$. | | Source: | arXiv, 1006.4921 | | Services: | Forum | Review | PDF | Favorites | |
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