Current driven pinning strength in the vortex lattice of Nb3Sn aided by a small oscillating magnetic field

2011/10/19 by M. Reibelt, Reibelt, M., N. Toyota +1
Engineering · Physics and Astronomy · #Superconducting Materials and Applications #Physics of Superconductivity and Magnetism #Particle accelerators and beam dynamics

paper · pdf · doi:10.48550/arxiv.1110.4388

Abstract

By the application of a small oscillating magnetic field parallel to the main magnetic field and perpendicular to the transport current, we were able to generate a voltage dip in the I-V curves of Nb₃Sn similar to the peak-effect pattern observed in earlier resistivity measurements. The pattern was history dependent and exhibited a memory effect. In addition we observed in the I-V curves for a high shaking-field amplitude a step feature of unknown origin.

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