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

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

2608

Lastpage

2611

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;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403124

Filename

403124