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APS » Journals » Phys. Rev. Lett. » Volume 92 » Issue 23
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Phys. Rev. Lett. 92, 237001 (2004) [4 pages]

Long-Range Nonlocal Flow of Vortices in Narrow Superconducting Channels

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I. V. Grigorieva, A. K. Geim, S. V. Dubonos, and K. S. Novoselov
Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom

D. Y. Vodolazov and F. M. Peeters
Departement Natuurkunde, Universiteit Antwerpen, Universiteitsplein 1, B-2610 Antwerpen, Belgium

P. H. Kes and M. Hesselberth
Kamerlingh Onnes Laboratorium, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands

Received 1 December 2003; published 8 June 2004

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 intervortex 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 (VL), 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.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.237001
DOI:
10.1103/PhysRevLett.92.237001
PACS:
74.25.Qt, 73.23.–b, 74.20.–z, 74.78.–w
 
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