Critical current oscillations in superconducting Al strips

ORAL

Abstract

We have studied current-voltage characteristics as a function of temperature and magnetic field in superconducting aluminum strips with varying lengths and cross sections. We find that the critical current oscillates as a function of magnetic field and suggest that the effect depends on the relative energies of vortex configurations in the strips in different transport regimes.

*This work was supported in part by National Science Foundation under DMR-1106167.

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Authors

  • Tyler Morgan-Wall

    • Johns Hopkins University

  • Benjamin Leith

    • Johns Hopkins University

  • Nikolaus Hartman

    • Johns Hopkins University

  • Atikur Rahman

    • Johns Hopkins University

  • Nina Markovic

    • Johns Hopkins University