Realization of macroscopic ratchet effect based on nonperiodic and uneven potentials

Abstract Ratchet devices allow turning an ac input signal into a dc output signal. A ratchet device is set by moving particles driven zero averages forces on asymmetric potentials. Hybrid nanostructures combining artificially fabricated spin ice nanomagnet arrays with superconducting films have been identified as good choice to develop nanodevices. In the current device, potentials are provided charged Néel walls located in vertices of magnetic honeycomb array, whereas role played vortices. We experimentally obtained effect for different I configurations and vortex lattice parallel or perpendicular easy axes. Remarkably, magnitudes similar all experimental runs; i. e. both relevant directions motion. simulated interplay between motion single potential. It turns out vortices interact uneven potentials, since they move trajectories crossing orientations. Moreover, we found pair which generate local effect. this rocking (vortices) interacting each other (vortex lattice); therefore, global macroscopic summary, benefits from robust topological protected type landscapes.