Domain Coarsening in a Two-Dimensional Binary Mixture: Growth Dynamics and Spatial Correlations

Michael Seul, Nicole Y. Morgan, and Clément Sire
Phys. Rev. Lett. 73, 2284 – Published 24 October 1994
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Abstract

Late-stage 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 n0.28 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.

  • Received 16 May 1994

DOI:https://doi.org/10.1103/PhysRevLett.73.2284

©1994 American Physical Society

Authors & Affiliations

Michael Seul, Nicole Y. Morgan*, and Clément Sire

  • AT&T Bell Laboratories, Murray Hill, NJ 07974

  • *Permanent address: Department of Physics, M.I.T., Cambridge, MA 01238.
  • Permanent address: Laboratoire de Physique Quantique, Université Paul Sabatier, 31062 Toulouse, Cedex, France.

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Vol. 73, Iss. 17 — 24 October 1994

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