Driven vortices in three-dimensional layered superconductors:: Dynamical ordering along the c axis

We study a three-dimensional model of driven vortices in weakly coupled layered superconductors with strong pinning. Above the critical force F-c, we find a plastic Row regime in which pancakes in different layers are uncoupled, corresponding to a pancake sas. At a higher F, there is a "smectic flow" regime with short-range interlayer order, corresponding to an entangled line liquid. Later, the transverse displacements freeze and vortices become correlated along the c axis, resulting in a tranverse solid. Finally, at a force F-s the longitudinal displacements freeze and we End a coherent solid of rigid lines.