Published November 18, 1991
| Version v1
Journal article
Proximity effect in YBa2Cu3O7/Y0.6Pr0.4Ba2Cu3O7/YBa2Cu3O7 junctions
- 1. Department of Physics, and the Crown Center for Superconductivity, Technion-Israel Institute of Technology, Haifa 32000 (Israel)
- 2. Department of Physics and Astronomy, Tel-Aviv University, Ramat-Aviv, Tel-Aviv (Israel)
Description
We report critical-current measurements in all high-Tc superconducting-normal-superconductor junctions using Y0.6Pr0.4Ba2Cu3O7 (with TcN=40 K) as the normal metal. Above TcN, we find a clear exponential dependence of Ic on the thickness of the barrier which is characteristic of the proximity effect. The order-parameter decay length is about 120 A for T>60 K, and it diverges as TcN is approached. We estimate that ξ0 for this material is 80±25 A
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 67
- Journal Issue
- 21
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 3038-3041
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23021538
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM OXIDES; CRITICAL CURRENT; CUPRATES; HIGH-TC SUPERCONDUCTORS; JOSEPHSON JUNCTIONS; ORDER PARAMETERS; PROXIMITY EFFECT; SUPERCONDUCTING JUNCTIONS; THICKNESS; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CURRENTS; DIMENSIONS; ELECTRIC CURRENTS; OXIDES; OXYGEN COMPOUNDS; SEMICONDUCTOR JUNCTIONS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS