Two-dimensional aggregation and crystallization of a colloidal suspension of latex spheres
- 1 January 1984
- journal article
- Published by EDP Sciences in Journal de Physique Lettres
- Vol. 45 (23), 1137-1143
- https://doi.org/10.1051/jphyslet:0198400450230113700
Abstract
We present experimental investigations of two-dimensional crystallization of calibrated Brownian spheres in water. The interaction monitored by an external AC electric field is attractive in a wide range of frequency and leads to a clustering of fractal crystallites. The fractal dimension of the structure is measured to be D = 1.74 ± 0.05 in good agreement with the theory of dynamical clustering of clusters. Melting occurs upon increasing frequency and is continuous via a phase of hexatic symmetry as seen by light scatteringKeywords
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