SIMPLE AND STABLE SINGLE-ELECTRON LOGIC UTILIZING TUNNEL-JUNCTION LOAD

Novel tunnel-junction-load single-electron logic (SEL) was proposed, w hich is simpler than the complementary SEL and its output is more stab le than that of the resistance-load SEL. We analyze the static operati on of a tunnel-junction-load inverter by examining the map of stabilit y domains and the dynamic operation using the Monte Carlo simulation. As a result, it ws found that the tunnel-junction SEL has sufficient g ain when the temperature is under 4 mK, and operates properly even whe n two inverters having the same parameters are serially connected.