Supercurrents in c-axis Pb/Bi2Sr2CaCu2O8 tunnel junctions

We investigated Josephson junctions made on the surface of Bi2Sr2CaCu2O8 single crystals with Pb as the counterectrode. Junctions exhibit a clear lead gap at low temperatures as well as a nonzero supercurrent. In microwave fields Shapiro steps appear at multiples of hf/2e showing that the supercurre...

Full description

Saved in:
Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 1997-08, Vol.282-287, p.2435-2436
Main Authors: Kleiner, R., Möβle, M., Walkenhorst, W., Hechtfischer, G., Schlenga, K., Müller, Paul
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigated Josephson junctions made on the surface of Bi2Sr2CaCu2O8 single crystals with Pb as the counterectrode. Junctions exhibit a clear lead gap at low temperatures as well as a nonzero supercurrent. In microwave fields Shapiro steps appear at multiples of hf/2e showing that the supercurrent is of first order. Consequences for a potential s-wave order parameter component in Bi2Sr2CaCu2O8 are discussed.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(97)01284-7