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A new group of high gain and wide margin Josephson Junction direct coupled isolation devices using a novel amplification scheme is described. The group includes a three Josephson Junction OR (3J/OR) gate and a four Josephson Junction AND (4J/AND) gate. DC threshold curves of both devices have been calculated. The optimized threshold for the 3J/OR shows a 30(More)
A new type of current switching logic device using three Josephson junctions is described. This device allows the simultaneous optimization of both the gain and the operating margin. It shows an enhanced threshold curve compared with that of the Direct Coupled Logic (DCL) isolation device and the Josephson Atto-Weber Switch (JAWS). Design optimization and(More)
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