Evidence of Vortex Jamming in Abrikosov Vortex Flux Flow Regime

ORAL

Abstract

We report on dynamics of non-local Abrikosov vortex flow in mesoscopic superconducting Nb channels. Magnetic field dependence of the non-local voltage induced by the flux flow shows that vortices form ordered vortex chains. Voltage asymmetry (rectification) with respect to the direction of vortex flow is evidence that vortex jamming strongly moderates vortex dynamics in mesoscopic geometries. The findings can be applied to superconducting devices exploiting vortex dynamics and vortex manipulation, including superconducting wires with engineered pinning centers.

–

Authors

  • Goran Karapetrov

    Physics Department, Drexel University, Philadelphia, PA 19104 USA, Physics Department, Drexel University, Drexel University, Physics Department, Drexel University, Philadelphia PA 19104, USA, Department of Physics, Drexel University and Institute of Electrical Engineering, Slovak Academy of Sciences

  • V. Yefremenko

    Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 USA, Argonne National Laboratory

  • G. Mihajlovic

    Argonne National Laboratory

  • John E. Pearson

    Argonne National Laboratory, Materials Science Division, Argonne National Laboratory, USA

  • Maria Iavarone

    Physics Department, Temple University, Philadelphia, PA 19122 USA, Temple University, Physics Department, Temple University, Philadelphia, PA 19122, USA

  • Valentyn Novosad

    Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 USA, Argonne National Laboratory, Argonne National Laboratory, Materials Science Division

  • Samuel D. Bader

    Argonne National Laboratory, MSD/CNM, Argonne Natl Lab, Argonne National Laboratory, Materials Science Division and Center for Nanoscale Materials