Experimental ratchet effect in superconducting films with periodic arrays of asymmetric potentials

Abstract

A vortex lattice ratchet effect has been investigated in Nb films grown on arrays of nanometric Ni triangles, which induce periodic asymmetric pinning potentials. The vortex lattice motion yields a net dc-voltage when an ac driving current is applied to the sample and the vortex lattice moves through the field of asymmetric potentials. This ratchet effect is studied taking into account the array geometry, the temperature, the number of vortices per unit cell of the array and the applied ac currents.

arXiv comment15 pages, figures included

References in corpus (10)

• Reducing vortex density in superconductors using the ratchet effect
• Superconducting Fluxon Pumps and Lenses
• Dependence of the vortex configuration on the geometry of mesoscopic flat samples
• Magnetic properties of submicron Co islands and their use as artificial pinning centers
• Ratchet effect in dc SQUIDs
• Temperature dependence and mechanisms for vortex pinning by periodic arrays of Ni dots in Nb films
• Depinning of kinks in a Josephson-junction ratchet array
• Ratchet Cellular Automata
• Directional vortex motion guided by artificially induced mesoscopic potentials
• Order in driven vortex lattices in superconducting Nb films with nanostructured pinning potentials

Cited by in corpus (29)

• Ubiquitous Superconducting Diode Effect in Superconductor Thin Films
• Nucleation of superconductivity and vortex matter in superconductor - ferromagnet hybrids
• Superconducting diode effect via conformal-mapped nanoholes
• Nonreciprocal charge transport in two-dimensional noncentrosymmetric superconductors
• Sign reversal diode effect in superconducting Dayem nanobridges
• Frequency-dependent ratchet effect in superconducting films with a tilted washboard pinning potential
• Quantum and classical ratchet motions of vortices in a 2D trigonal superconductor
• Skyrmion Ratchet in Funnel Geometries
• Rectification of Vortex Motion in a Circular Ratchet Channel
• High-frequency diode effect in superconducting Nb${}_3$Sn micro-bridges
• Vortex configurations and dynamics in elliptical pinning sites for high matching fields
• Transverse rectification of disorder-induced fluctuations in a driven system
• Spontaneous Transverse Response and Amplified Switching in Superconductors with Honeycomb Pinning Arrays
• Vortex ratchet reversal at fractional matching fields in kagomé-like array with symmetric pinning centers
• Tunable ratchet effects for vortices pinned by periodic magnetic dipole arrays
• Lattice effects and current reversal in superconducting ratchets
• Current reversal in collective ratchets induced by lattice instability
• Guiding of vortices and ratchet effect in superconducting films with asymmetric pinning potential
• Clogging, Diode and Collective Effects of Skyrmions in Funnel Geometries
• Rocking ratchet induced by pure magnetic potentials with broken reflection symmetry
• Transverse ratchet effect and superconducting vortices: Simulation and experiment
• Gate-tunable giant superconducting nonreciprocal transport in few-layer $T_{\mathrm{d}}$-MoTe${}_2$
• Ratchet Effect and Nonlinear Transport for Particles on Random Substrates with Crossed ac Drives
• Unconventional superconducting diode effects via antisymmetry and antisymmetry breaking
• Weak stochastic ratchets and dynamic localization in measurement-induced quantum trajectories
• Quasi-ideal feedback-loop supercurrent diode
• Tunable anisotropic nonlinearity in superconductors with asymmetric antidot array
• Directional driving of vortex lines with oscillating magnetic field
• Realization of macroscopic ratchet effect based on nonperiodic and uneven potentials