Dynamics of superconducting vortices driven by oscillatory forces in the plastic flow regime

Abstract

We study experimentally and theoretically, the reorganization of superconducting vortices driven by oscillatory forces near the plastic depinning transition. We show that the system can be taken to configurations that are tagged by the shaking parameters but keep no trace of the initial conditions. In experiments performed in $NbS{e}_2$ crystals, the periodic drive is induced by ac magnetic shaking fields and the overall order of the resulting configuration is determined by non invasive ac susceptibility measurements. With a model of interacting particles driven over random landscapes, we perform molecular dynamics simulations that reveal the nature of the shaking dynamics as fluctuating states similar to those predicted for other interacting particle systems.

5 pages, 4 figures

References in corpus (5)

• Sliding charge density wave in manganites
• Reversible to Irreversible Flow Transition in Periodically Driven Vortices
• Ordered, disordered and coexistent stable vortex lattices in NbSe_2 single crystals
• Domain-wall depinning assisted by pure spin currents
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Cited by in corpus (1)

• Critical behavior at de-pinning of a driven disordered vortex matter in 2H-NbS2