Title :
Application of Josephson edge type junctions with a PrBa/sub 2/Cu/sub 3/O/sub 7/ barrier prepared with Br-ethanol etching or cleaning
Author :
Faley, M.I. ; Poppe, U. ; Jia, C.L. ; Dahne, U. ; Goncharov, Yu. ; Klein, N. ; Urban, K. ; Glyantsev, V.N. ; Kunkel, G. ; Siegel, M.
Author_Institution :
Inst. fur Festkorperforschung, Julich, Germany
fDate :
6/1/1995 12:00:00 AM
Abstract :
The technique of the edge preparation for multilayer Josephson edge type junctions on the basis of c-axis oriented YBa/sub 2/Cu/sub 3/O/sub 7/ thin films with the help of etching in Br-ethanol solution was improved. Microwave induced Shapiro steps, Josephson radiation, and characteristics of dc-SQUIDs were investigated. The developed technique prevents the junctions and device properties from degradation due to aging or thermal cycling.<>
Keywords :
Josephson effect; SQUIDs; barium compounds; etching; high-temperature superconductors; praseodymium compounds; superconducting thin films; surface cleaning; yttrium compounds; Br; Br-ethanol solution; DC-SQUIDs; Josephson radiation; PrBa/sub 2/Cu/sub 3/O/sub 7/; PrBa/sub 2/Cu/sub 3/O/sub 7/ barrier; YBa/sub 2/Cu/sub 3/O/sub 7/; aging; c-axis oriented YBa/sub 2/Cu/sub 3/O/sub 7/ thin films; cleaning; edge preparation; etching; microwave induced Shapiro steps; multilayer Josephson edge type junctions; thermal cycling; Chemicals; Cleaning; Electrodes; Etching; High temperature superconductors; Josephson junctions; SQUIDs; Superconducting devices; Superconducting microwave devices; Superconducting transition temperature;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
