Driven vortices in 3D layered superconductors: Dynamical ordering along the c-axis

Abstract

We study a 3D model of driven vortices in weakly coupled layered superconductors with strong pinning. Above the critical force $F_c$, we find a plastic flow regime in which pancakes in different layers are uncoupled, corresponding to a pancake gas. At a higher $F$, there is an ``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 transverse solid. Finally, at a force $F_s$ the longitudinal displacements freeze and we find a coherent solid of rigid lines.

4 pages, 3 postscript figures

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• Hysteretic depinning and dynamical melting for magnetically interacting vortices in disordered layered superconductors
• Chaos and plasticity in superconductor vortices: a low-dimensional dynamics
• Dynamic reorganization of vortex matter into partially disordered lattices
• Flux melting in BSCCO: Incorporating both electromagnetic and Josephson couplings
• Vortex matter in layered superconductors without Josephson coupling: numerical simulations within a mean-field approach
• Vortex Washboard Voltage Noise in Type-II Superconductors
• Mode-locking in driven vortex lattices with transverse ac-drive and random pinning
• Transverse phase-locking in fully frustrated Josephson junction arrays: a new type of fractional giant steps
• Molecular Dynamics of pancake vortices with realistic interactions: Observing the vortex lattice melting transition
• Nonequilibrium steady states of driven magnetic flux lines in disordered type-II superconductors
• Driven flux-line lattices in the presence of weak random columnar disorder: Finite-temperature behavior and dynamical melting of moving Bose glass