Journal
PHYSICAL REVIEW LETTERS
Volume 86, Issue 26, Pages 5898-5901Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.5898
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We report on experimental measurements of the growth of regular domains evolving from an irregular pattern in electroconvection. The late-time growth of the domains is consistent with the size of the domains scaling as tn. We use two isotropic measurements of the domain size: the structure factor and the domain wall length. Measurements using the structure factor are consistent with t(1/5) growth. Measurements using the domain wall length are consistent with t(1/4) growth. One source of this discrepancy is the fact that the distribution of local wave numbers is approximately independent of the domain size. In addition, we measure the anisotropy of the growing domains.
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