Title :
Very large YBa/sub 2/Cu/sub 3/O/sub 7/-Josephson-junction-arrays
Author :
Burkhardt, H. ; Brugmann, O. ; Rauther, A. ; Schnell, F. ; Schilling, M.
Author_Institution :
Inst. fur Angewandte Phys., Hamburg Univ., Germany
fDate :
6/1/1999 12:00:00 AM
Abstract :
Arrays with YBa/sub 2/Cu/sub 3/O/sub 7/-Josephson junction ramp-edge geometry and on bicrystal substrates were investigated. The ramp-edge Josephson junctions were prepared in arrays of three, five and seven junctions in series and in a mixed array with a very large number of up to two million on one chip. First measurements are presented. On bicrystal substrates Josephson junctions were prepared up to 105 Josephson junctions in series. They show scaled current-voltage characteristics and Shapiro-steps under influence of microwave radiation.
Keywords :
Josephson effect; barium compounds; critical current density (superconductivity); high-temperature superconductors; superconducting arrays; superconducting integrated circuits; superconducting microwave devices; yttrium compounds; Josephson-junction-arrays; Shapiro-steps; YBa/sub 2/Cu/sub 3/O/sub 7/; microwave radiation; mixed array; ramp-edge geometry; scaled current-voltage characteristics; Antenna measurements; Circuits; Critical current; Critical current density; Electrical resistance measurement; Electrodes; Etching; Josephson junctions; Phased arrays; Temperature;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
