Title :
Development and investigation of Nb-Al-oxide-Nb Josephson junction arrays [voltage standard application]
Author :
Bochanov, A.F. ; Gelikonova, V.D. ; Klushin, A.M. ; Shisharin, P.A. ; Krasnopolin, I.Ya.
Author_Institution :
Inst. of Electron. Meas., Nizhniy Novgorod, Russia
fDate :
June 27 1994-July 1 1994
Abstract :
An array of 3072 Josephson junctions Nb-AlO/sub x/-Nb is developed at IEM "KVARZ". Some preliminary results of an investigation of I-V curves under microwave irradiation in the 70 GHz frequency band are given. Zero current quantized voltage steps are displayed up to 450 mV with an amplitude >100 /spl mu/A. An improvement of the fabrication process, which is in progress, will enable to increase quantized voltage steps region up to 1 V.<>
Keywords :
aluminium compounds; electron device manufacture; measurement standards; microwave measurement; niobium; superconducting junction devices; voltage measurement; 1 V; 100 muA; 450 mV; 70 GHz; I-V curves; Josephson junction arrays; Nb-AlO-Nb; Nb-AlO/sub x/-Nb; design; fabrication; microwave irradiation; quantized voltage steps; voltages standards; Electrodes; Fabrication; Frequency; Josephson junctions; Microstrip antennas; Microwave theory and techniques; Niobium; Sputtering; Standards development; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333440
