DocumentCode
1539654
Title
Constant-voltage steps in arrays of Nb-PdAu-Nb Josephson junctions
Author
Benz, S.P. ; Burroughs, C.J.
Author_Institution
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Volume
7
Issue
2
fYear
1997
fDate
6/1/1997 12:00:00 AM
Firstpage
2434
Lastpage
2437
Abstract
Design and fabrication of Nb-PdAu-Nb trilayer Josephson junctions are described. The microwave response of an array of 1000 of these junctions was measured, and constant-voltage step heights mere characterized as a function of the microwave amplitude and frequency. Experimental results fit well to point-junction simulations at the 3 GHz design frequency of the microwave distribution network. The observed step height of 3.8 mA shows that the array and microwave distribution are sufficiently uniform for application in programmable Josephson voltage standards.
Keywords
Josephson effect; gold alloys; niobium; palladium alloys; superconducting microwave devices; 3 GHz; Nb-PdAu-Nb; Nb-PdAu-Nb trilayer Josephson junction array; SNS junction; constant-voltage steps; microwave distribution network; point-junction simulation; programmable Josephson voltage standard; Counting circuits; Electrodes; Fabrication; Frequency; Josephson junctions; Microwave antenna arrays; Niobium; Sputter etching; Superconducting microwave devices; Voltage;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/77.621732
Filename
621732
Link To Document