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)∼tα of the average domain size, with α=4/3 and α=1/3 in the flow and shear direction respectively, is shown to be obeyed.Comment: 5 Revtex pages, 4 figure