论文信息 - A DC-powered Josephson flip-flop

A DC-powered Josephson flip-flop

A novel dc-powered flip-flop logic and/or memory element utilizing two Josephson tunneling gates has been designed and tested. Circuit resistances R, critical currents I c , and fanout inductances L are chosen so that the gates operate individually in the latching current-steering mode. However, the gates G1 and G2 are interconnected in such a way that if, say, G1 is at V\neq0 and G2 is at V=0, a switching of G2 to V\neq0 returns G1 to the V=0 state. The fanout current redistribution, which accompanies this switching event, occurs with a time constant of about L/R. Switching back to the initial state is a symmetric process. Tolerances on circuit parameter values for proper operation are reasonably wide.

Shin-Shem Pei | T. A. Fulton | Arthur F. Hebard | L. N. Dunkleberger

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