DocumentCode
942213
Title
Andreev reflection current in clean and one-dimensional Nb short weak links
Author
Hamasaki, K. ; Abe, H.
Author_Institution
Dept. of Electr. Eng., Nagaoka Univ. of Technol., Niigato, Japan
Volume
3
Issue
1
fYear
1993
fDate
3/1/1993 12:00:00 AM
Firstpage
2215
Lastpage
2218
Abstract
Nb-(fine Nb wires)-NbN short weak links (SWLs) have been reproducibly fabricated by the field evaporation technique. By this method, one could continuously vary the I-V curve from insulator type to tunnel-type to metallic-contact type. The quasiparticle characteristics are qualitatively very similar to the prediction of Klapwijk, Blonder, and Tinkham (KBT) theory for the simple case of two independent normal metal-superconductor interfaces in the clean contact limit.<>
Keywords
Josephson effect; niobium; quasi-particles; superconducting junction devices; type II superconductors; 1D weak links; Andreev reflection current; I-V curve; Nb weak links; Nb-Nb-NbN; clean contact limit; field evaporation technique; normal metal-superconductor interfaces; quasiparticle characteristics; short weak links; Cable insulation; Dielectrics and electrical insulation; Electrons; Equations; Fabrication; Metal-insulator structures; Niobium; Pulse measurements; Quantum mechanics; Reflection;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/77.233565
Filename
233565
Link To Document