DocumentCode
1125567
Title
Fabrication and characterization of YBa2Cu3O 7/Au/YBa2Cu3O7 Josephson junctions
Author
Forrester, M.G. ; Talvacchio, J. ; Gavaler, J.R. ; Rooks, M. ; Lindquist, J.
Author_Institution
Westinghouse Electr. Corp., Pittsburgh, PA, USA
Volume
27
Issue
2
fYear
1991
fDate
3/1/1991 12:00:00 AM
Firstpage
3098
Lastpage
3101
Abstract
All-high-T c Josephson junctions have been fabricated in a planar SNS geometry by bridging narrow gaps (≈0.1-0.2 μm) in epitaxial YBa2Cu3O7 (YBCO) films with Au. The resulting devices exhibit a variety of nonhysteretic I -V characteristics, with I cR N on the order of 0.1 to 10 mV, and exhibit Shapiro steps under microwave irradiation, and weak periodic modulation of the critical current with applied magnetic field. The transport properties of the junctions appear to be dominated by the Au/YBCO interfaces rather than by the Au itself
Keywords
Josephson effect; barium compounds; gold; high-temperature superconductors; superconducting junction devices; yttrium compounds; 0.1 to 0.2 micron; 0.1 to 10 mV; Josephson junctions; Shapiro steps; YBa2Cu3O7-Au-YBa2Cu 3O7; applied magnetic field; bridging narrow gaps; characterization; fabrication; high temperature superconductors; microwave irradiation; nonhysteretic I-V characteristics; planar SNS geometry; weak periodic modulation; Etching; Fabrication; Gold; Ion beams; Lithography; Milling; Particle beams; Resists; Temperature; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.133994
Filename
133994
Link To Document