We report a series of complex (dusty) plasma experiments, aimed at the study of the detailed time evolution of the recrystallization process followinga rapid quench of a two-dimensional dust liquid. The experiments were accompanied by large-scale (million-particle) molecular dynamicssimulations, assuming Yukawa-type interparticle interaction. Both experiment and simulation show a ∝t(α) (power-law) dependence of the linear crystallite domain size as measured by the bond-order correlation length, translational correlation length, dislocation (defect) density, and adirect size measurement algorithm. The results show two stages of order formation. On short time scales, individual particle motion dominates; this is afast process characterized by α=0.93±0.1. At longer time scales, small crystallites undergo collective rearrangement, merging into bigger ones, resulting in a smaller exponent α=0.38±0.06.
Physical Review Letters
Copyright 2010 by The American Physical Society.
Hartmann, P., Douglass, A., Reyes, J. C., Matthews, L. S., Hyde, T. W., Kovács, A., & Donkó, Z. (2010). Crystallization dynamics of a single layer complex plasma. Physical Review Letters, 105(11), 115004.
Douglass, Angela; Hartmann, Peter; Reyes, Jorge C.; Matthews, Lorin S.; Hyde, Truell W.; Kovacs, Aniko; and Donko, Zoltan, "Crystallization Dynamics of a Single Layer Complex Plasma" (2010). Articles. 31.