Heteroepitaxial Ba1−xKxBiO3/La2−ySryCuO4 superconducting junctions

✍ Scribed by E.S. Hellman; J.R. Kwo; A. Kussmaul; E.H. Hartford Jr.

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 568 KB
• Volume: 251
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(95)00379-7

✦ Synopsis

The properties of junctions made by growing superconducting Bal_xKxBiO 3 (BKBO) epitaxially on superconducting Lal.85Sro.15CuO 4 (LSCO) epitaxial films depend on the orientation of the Lal.85Sro.15CuO 4 films. Unusual features in the conductance characteristics of junctions made on ( 103) and ( 100) LSCO films are similar to those of BKBO/native barrier/normal-metal tunnel junctions; these junctions also have supercurrents. On (001) LSCO films, no supercurrents or gap structure are observed, despite similar junction resistances.