Rectification and Flux Reversals for Vortices Interacting with Triangular Traps

Abstract

We simulate vortices in superconductors interacting with two-dimensional arrays of triangular traps. We find that, upon application of an ac drive, a net dc flow can occur which shows current reversals with increasing ac drive amplitude for certain vortex densities, in agreement with recent experiments and theoretical predictions. We identify the vortex dynamics responsible for the different rectification regimes. We also predict the occurrence of a novel transverse rectification effect in which a dc flow appears that is transverse to the direction of the applied ac drive.

4 pages, 4 postscript figures

References in corpus (3)

• Novel Colloidal Crystalline States on Two Dimensional Periodic Substrates
• Ratchet Cellular Automata
• Lattice Gas Dynamics; Application to Driven Vortices in Two Dimensional Superconductors

Cited by in corpus (18)

• Artificial Brownian motors: Controlling transport on the nanoscale
• Reversible Vortex Ratchet Effects and Ordering in Superconductors with Simple Asymmetric Potential Arrays
• Reversible Ratchet Effects for Vortices in Conformal Pinning Arrays
• Reversible Vector Ratchets for Skyrmion Systems
• Moving Vortex Phases, Dynamical Symmetry Breaking, and Jamming for Vortices in Honeycomb Pinning Arrays
• Skyrmion Ratchet in Funnel Geometries
• Rectification of Vortex Motion in a Circular Ratchet Channel
• Vortex ratchet reversal in an asymmetric washboard pinning potential subject to combined dc and ac stimuli
• Vortex configurations and dynamics in elliptical pinning sites for high matching fields
• Dynamics of Magnus Dominated Particle Clusters, Collisions, Pinning and Ratchets
• Vortex ratchet reversal: The role of interstitial vortices
• Transverse vortex commensurability effect and sign change of the Hall voltage in superconducting YBa${}_2$Cu${}_3$O${}_{7-\delta }$ thin films with a nanoscale periodic pinning landscape
• Lattice effects and current reversal in superconducting ratchets
• Current reversal in collective ratchets induced by lattice instability
• Transverse ac Driven and Geometric Ratchet Effects for Vortices in Conformal Crystal Pinning Arrays
• Transverse ratchet effect and superconducting vortices: Simulation and experiment
• Pinning, Flux Diodes, and Ratchets for Vortices Interacting with Conformal Pinning Arrays
• Enhancement of mobilities in a pinned multidomain crystal