Abstract

A nondestructive readout random access memory based on the use of a two-dimensional array of single-quantum vortices in a thin-film type-II superconductor represents an interesting new storage medium for future Josephson computers. We have studied experimentally the operational mode of this memory device, using as a model system multiquanta flux tubes in a thin-film type-I superconductor (Pb) in combination with stroboscopic high-resolution magneto-optical flux detection. From our results estimates of the performance data of a single-quantum vortex- memory device are derived.

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