Vortex Motion Rectification in Josephson Junction Arrays with a Ratchet Potential

2004/11/19 by D. E. Shalom, D. E. Shalóm, H. Pastoriza · 3 citations
Computer Science · Engineering · Physics and Astronomy · #Fluid Dynamics and Turbulent Flows #Nonlinear Dynamics and Pattern Formation #cond-mat.soft #cond-mat.stat-mech #cond-mat.supr-con #stochastic dynamics and bifurcation

paper · pdf · doi:10.1103/physrevlett.94.177001

published as Phys. Rev. Lett. 94, 177001 (2005) · PDF only, 4 pages

arxiv created 2004/11/19 · openalex publication_date 2005/05/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

By means of electrical transport measurements we have studied the rectified motion of vortices in ratchet potentials engineered on overdamped Josephson junction arrays. The rectified voltage as a function of the vortex density shows a maximum efficiency close a matching condition to the period of the ratchet potential indicating a collective vortex motion. Vortex current reversals were detected varying the driving force and vortex density revealing the influence of vortex-vortex interaction in the ratchet effect.

Cited by

• Rocking Ratchets in Two-Dimensional Josephson Networks: Collective Effects and Current Reversal
• Asymmetric weak-pinning superconducting channels: Vortex ratchets
• Reversible vortex ratchet effects and ordering in superconductors with simple asymmetric potential arrays

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