Effects of Anisotropy on the Formation of a Lamellar Phase under Shear

We consider the phase ordering process of a system quenched into a lamellar phase in the presence of a shear flow. By studying the continuum model based on the Brazowskii free energy in a self-consistent approximation, we analyse the effects of a weak anisotropy in the quartic coupling constant, finding that it radically changes the evolution of the system.