Study of Nb/Nb xSi1− x/Nb Josephson junction arrays
Cao Wen-Hui†, Li Jin-Jin‡, Zhong Yuan, He Qing
       
(a) One thousand 49-μm2 Nb/Nb x Si1− x /Nb Josephson junctions in series for DC measurement, and (b) part of the junction array with co-planar wave guide for observing Shapiro steps.