FABRICATION AND PROPERTIES OF YBA2CU3O7-Y PRGAO3/YBA2CU3O7-Y TUNNEL-JUNCTIONS/

Authors
JIANG YS CAI XY USAMI K KOBAYASHI T GOTO T
Citation
Ys. Jiang et al., FABRICATION AND PROPERTIES OF YBA2CU3O7-Y PRGAO3/YBA2CU3O7-Y TUNNEL-JUNCTIONS/, Physica. C, Superconductivity, 282, 1997, pp. 2463-2464
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
4
Pages
2463 - 2464
Database
ISI
SICI code
0921-4534(1997)282:<2463:FAPOYP>2.0.ZU;2-T
Abstract
We fabricated vertical YBa2Cu3O7-y/PrGaO3/YBa2Cu3O7-y (SIS) tunnel jun ctions by using YBCO films on STO(100) substrate. The current-voltage characteristics and conductance-voltage characteristics of the junctio ns with various barrier thicknesses were measured. In the junction wit h about 60nm thick barrier, the peaks of conductance indicative of gap -like structures were found at about +/-35mV. The temperature dependen ce of the voltage peak agreed with that of the BCS energy gap.