Abstract
We have measured the conductance of Y 1-xPr xBa 2Cu 3O 7/Pb planar tunnel junctions fabricated on thin films where x equals 0, 0.2 and 0.4. When tunneling into the ab-plane, there is a weak decrease in conductance at eV approximately 2k BT c, where a superconducting gap is expected. With increasing Pr concentration, the energy where this gap-like feature appears is reduced by an amount commensurate with the reduction in T c. The gap-like structure in the c-axis tunneling conductance becomes weaker, but displays no change in energy when YBCO is doped with Pr.
Original language | English (US) |
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Pages (from-to) | 394-401 |
Number of pages | 8 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 2696 |
Issue number | 2/- |
State | Published - 1996 |
Event | Spectroscopic Studies of Superconductors. Part 2 (of 2) - San Jose, CA, USA Duration: Jan 29 1996 → Feb 1 1996 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering