Tunable Generation of Correlated Vortices in Open Superconductor Tubes

As shown theoretically, geometry determines the dynamics of vortices in the presence of transport currents in open superconductor micro- and nanotubes subject to a magnetic field orthogonal to the axis. In low magnetic fields, vortices nucleate periodically at one edge of the tube, subsequently move...

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Bibliographic Details
Published in:Nano letters 2012-03, Vol.12 (3), p.1282-1287
Main Authors: Fomin, Vladimir M, Rezaev, Roman O, Schmidt, Oliver G
Format: Article
Language:English
Subjects:
Computer Simulation
Correlation
Electric Conductivity
Electromagnetic Fields
Fluid flow
Magnetic fields
Models, Chemical
Nanostructures - chemistry
Nanostructures - ultrastructure
Nanotubes
Particle Size
Slits
Statistics as Topic
Superconductivity
Superconductors
Tubes
Vortices
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Summary:As shown theoretically, geometry determines the dynamics of vortices in the presence of transport currents in open superconductor micro- and nanotubes subject to a magnetic field orthogonal to the axis. In low magnetic fields, vortices nucleate periodically at one edge of the tube, subsequently move along the tube under the action of the Lorentz force and denucleate at the opposite edge of the tube. In high magnetic fields, vortices pass along rows closest to the slit. Intervortex correlations lead to an attraction between vortices moving at opposite sides of a tube. Open superconductor nanotubes provide a tunable generator of superconducting vortices for fluxon-based quantum computing.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl203765f