Two-scale competition in phase separation with shear

Details Two-scale competition in phase separation with shear Two-scale competition in phase separation with shear

1999-04-29

arxiv.org/abs/cond-mat/9904423v1

Phys. Rev. Lett. 83, 4057 (1999)

Physics

Condensed Matter

5 Revtex pages, 4 figures

Scientific paper

10.1103/PhysRevLett.83.4057

The behavior of a phase separating binary mixture in uniform shear flow is investigated by numerical simulations and in a renormalization group (RG) approach. Results show the simultaneous existence of domains of two characteristic scales. Stretching and cooperative ruptures of the network produce a rich interplay where the recurrent prevalence of thick and thin domains determines log-time periodic oscillations. A power law growth $ R(t) \sim t^{\alpha}$ of the average domain size, with $\alpha =4/3$ and $\alpha = 1/3$ in the flow and shear direction respectively, is shown to be obeyed.

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