Superconducting networks with the proximity effect

Author: Tsuchiya S.   Tanda S.  

Publisher: Edp Sciences

E-ISSN: 1286-4854|94|4|47008-47008

ISSN: 0295-5075

Source: EPL (EUROPHYSICS LETTERS), Vol.94, Iss.4, 2011-05, pp. : 47008-47008

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Abstract

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, SBnn− 2SAn. This suggests that even in a proximity network vortices are arranged in a way identical to a monolayer network.