Long-range nonlocal flow of vortices in narrow superconducting channels

Details Long-range nonlocal flow of vortices in narrow superconducting channels Long-range nonlocal flow of vortices in narrow superconducting channels

2004-04-20

arxiv.org/abs/cond-mat/0404471v2

Phys. Rev. Lett. 92, 237001 (2004)

Physics

Condensed Matter

Superconductivity

a slightly longer version of a tentatively accepted PRL

Scientific paper

10.1103/PhysRevLett.92.237001

We report a new nonlocal effect in vortex matter, where an electric current confined to a small region of a long and sufficiently narrow superconducting wire causes vortex flow at distances hundreds of inter-vortex separations away. The observed remote traffic of vortices is attributed to a very efficient transfer of a local strain through the one-dimensional vortex lattice, even in the presence of disorder. We also observe mesoscopic fluctuations in the nonlocal vortex flow, which arise due to "traffic jams" when vortex arrangements do not match a local geometry of a superconducting channel.

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