Abstract
Josephson tunneling has been demonstrated between YBCO and lead with the current flowing along the c axis of YBCO. The tunneling current is surprisingly large, and does not follow random statistics when experiments on twinned samples are performed. This phenomenon is not understood. We present a model based on the presence of a surface-enhanced s-wave component to the order parameter which can produce these effects. (C) 1998 Elsevier Science Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 2026-2029 |
Number of pages | 4 |
Journal | Journal of Physics and Chemistry of Solids |
Volume | 59 |
Publication status | Published - Oct 1998 |
Keywords
- HIGH-TEMPERATURE
- ORDER-PARAMETER
- SUPERCONDUCTORS
- YBA2CU3O7-DELTA
- JUNCTIONS
- SYMMETRY