Physics – Condensed Matter – Superconductivity
Scientific paper
2000-11-13
Physics
Condensed Matter
Superconductivity
8 pages, 2 figures, presented at ICM-2000 International Conference on Magnetism, to appear on JMMM
Scientific paper
10.1016/S0304-8853(00)01174-4
In this contribution we present a simple and effective procedure to determine the average critical current of a tridimensional disordered Josephson junction array (3D-DJJA). Using a contactless configuration we evaluate the average critical current and the typical width of the distribution through the analysis of the isothermal susceptibility response to the excitation field amplitude, chiAC(h). A 3D-DJJA fabricated from granular Nb is used to illustrate the method.
de Oliveira U. R.
Ortiz Wilson Aires
Passos W. A. C.
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