Title :
Lumped arrays of shunted bicrystal Josephson junctions
Author :
Klushin, Alexander M. ; Il´in, Konstantin S. ; Siegel, Michael ; Schubert, Marco ; Wende, Gerd ; Mayer, Hans-Georg
Author_Institution :
Inst. fur Schichten und Grenzflachen, Forschungszentrum Julich GmbH, Germany
fDate :
6/1/2003 12:00:00 AM
Abstract :
We report on the design, fabrication, and investigation of lumped arrays of Josephson junctions embedded into coplanar strip-lines (CPS). The arrays were incorporated into the CPS by meandering a bilayer across the grain boundary. Limitations on junctions packing density are discussed. The dependence of the length of the lumped array on spread of critical currents of junctions in the array was found. The investigated arrays with 431 junctions have shown frequency locking with an external irradiation. Voltage steps up to 20 mV at liquid nitrogen temperature were demonstrated.
Keywords :
Josephson effect; electron beam lithography; measurement standards; strip lines; superconducting arrays; superconducting junction devices; superconducting microwave devices; voltage measurement; 20 mV; Josephson junctions; coplanar striplines; critical currents; fabrication; frequency locking; lumped arrays; microwave properties; packing density; voltage standard; Critical current; Fabrication; Frequency; Grain boundaries; High temperature superconductors; Josephson junctions; Nitrogen; Packaging; Voltage; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.813960
