Josephson effect in Nb/Al2O3/Al/MgB2 large-area thin-film heterostructures

Academic Article
Publication Date:
2002
abstract:
We report the demonstration of dc and ac Josephson effects in Nb/Al2O3/Al/MgB2 thin-film heterostructure. The heterostructure exhibits moderately hysteretic current-voltage characteristic with a dc Josephson current branch and regular microwave-induced Shapiro steps. From conductance spectrum, a gap of about 2 meV at 7.7 K is estimated for the proximized surface of MgB2 electrode
Iris type:
01.01 Articolo in rivista
List of contributors:
Authors of the University:
Handle:
https://iris.cnr.it/handle/20.500.14243/220629
Published in:
APPLIED PHYSICS LETTERS
Journal