Superconducting networks with the proximity effect

Details Superconducting networks with the proximity effect Superconducting networks with the proximity effect

2009-11-06

arxiv.org/abs/0911.1217v3

EPL 94, 47008 (2011)

Physics

Condensed Matter

Superconductivity

13 pages, 5 figures

Scientific paper

10.1209/0295-5075/94/47008

We report on the first observation of a novel type of superconducting proximity network using a superconductor-normal metal bilayer. Little-Parks oscillation measurements show that the superconducting current flows through a path enclosed by the edge rather than by the center of the Pb/Au wire in the network. Furthermore, several peaks were observed in a power spectrum analysis. We observed that the sequence of these peaks and that of the monolayer network were connected by the power function, which is a factor of the line width, S_{B_n} = \alpha^{n-2}S_{A_n}. This suggests that even in a proximity network vortices are arranged in a way identical to a monolayer network.

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