c-axis tunneling in YBCO

Authors
Haslinger, R Joynt, R Betouras, J
Citation
R. Haslinger et al., c-axis tunneling in YBCO, J PHYS CH S, 59(10-12), 1998, pp. 2026-2029
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN journal
00223697 → ACNP
Volume
59
Issue
10-12
Year of publication
1998
Pages
2026 - 2029
Database
ISI
SICI code
0022-3697(199810/12)59:10-12<2026:CTIY>2.0.ZU;2-Y
Abstract
Josephson tunneling has been demonstrated between YBCO and lead with the cu rrent flowing along the c axis of YBCO. The tunneling current is surprising ly large, and does not follow random statistics when experiments on twinned samples are performed. This phenomenon is not understood. We present a mod el based on the presence of a surface-enhanced s-wave component to the orde r parameter which can produce these effects. (C) 1998 Elsevier Science Ltd. All rights reserved.