Domain coarsening in a two-dimensional binary mixture: Growth dynamics and spatial correlations
Journal Article
·
· Physical Review Letters; (United States)
- AT T Bell Laboratories, Murray Hill, New Jersey 07974 (United States)
Late-state coarsening in a 2D binary mixture has been investigated via direct imaging of bubble'' domains in an amphiphilic monolayer at an air-water interface. In a regime with growth exponent [ital n][congruent]0.28 for the mean domain radius, the radius distribution exhibits dynamic scaling, closely approaching a Gaussian shape. The local structure of disordered bubble patterns ensures short-range screening of topological charge. Pattern statistics correspond to equilibrated random Voronoi lattices and indicate a prominent role of entropy maximization. Pattern stabilization against bubble coalescence is attributed to electrostatic interactions.
- OSTI ID:
- 6906057
- Journal Information:
- Physical Review Letters; (United States), Vol. 73:17; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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