Abstract
Measurements of the critical current I c along the c-axis as a function of the parallel magnetic field H clearly demonstrate the intrinsic DC Josephson effect on small area stacks fabricated from perfect single crystal Bi 2Sr 2CaCu 2O 8 whiskers with in-plane size, L, less than 20 μ m. Flux-flow steps on current voltage characteristics on overlap stacked analogues of long Josephson junctions have been found due to a collective motion of Josephson vortex lattice. The results on the microwave response of small junctions are also discussed.
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