Berlin 2012 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 33: Superconductivity, Measuring Devices, Matter at Low Temperature: Poster Session

TT 33.31: Poster

Wednesday, March 28, 2012, 15:00–19:00, Poster B

Fluctuation conductivity in small superconducting cylinders — •Brian Tarasinski and Georg Schwiete — Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin

By threading a magnetic flux through mesoscopic superconducting cylinders with diameter comparable to the superconducting coherence length ξ, it is possible to suppress superconductivity, leading to a destructive regime around half integer flux quanta.

Recently, transport experiments on small superconducting cylinders have been reported, in which the destructive regime could be observed [1,2]. We study theoretically the fluctuation conductivity on the normal side of the transition with particular emphasis on the low temperature regime.
Y. Liu et al., Science 294, 2332 (2001).
I. Sternfeld et al., Phys. Rev. Lett. 107, 037001 (2011)