Title :
Gap measurement in Nb/NbOx/Al injection controlled planar three terminal devices
Author :
Takeuchi, Kiyoshi ; Okabe, Yoichi
Author_Institution :
Dept. of Electron. Eng., Tokyo Univ., Japan
fDate :
3/1/1989 12:00:00 AM
Abstract :
The characteristics of Nb/NbOx/Al injection-controlled planar three-terminal superconducting devices (injection-controlled links) have been studied experimentally. A built-in Nb/AlOx/Nb Josephson junction is used to perform direct tunneling measurement, whose results show that the gap in the Nb strip decreases as its critical current is suppressed. It is also shown that the static characteristics of the devices with high and low injector resistance can be fitted to a simple heating model and a modified heating model, respectively
Keywords :
Josephson effect; aluminium; critical currents; niobium; niobium compounds; superconducting energy gap; superconducting junction devices; Josephson junction; Nb-NbOx-Al; critical current; gap measurement; heating model; injection-controlled links; injection-controlled planar three-terminal superconducting devices; injector resistance; static characteristics; tunneling; Critical current; Current measurement; Electrical resistance measurement; Josephson junctions; Niobium compounds; Performance evaluation; Resistance heating; Strips; Superconducting devices; Tunneling;
Journal_Title :
Magnetics, IEEE Transactions on
