IMPACT OF THE SYMMETRY OF THE SUPERCONDUCTING WAVE-FUNCTION ON SUPERCURRENT TRANSPORT IN YBA2CU3O7-DELTA JOSEPHSON-JUNCTIONS

Authors
IVANOV ZG STEPANTSOV EA WENGER F CLAESON T LIN SY KHARE N CHAUDHARI P
Citation
Zg. Ivanov et al., IMPACT OF THE SYMMETRY OF THE SUPERCONDUCTING WAVE-FUNCTION ON SUPERCURRENT TRANSPORT IN YBA2CU3O7-DELTA JOSEPHSON-JUNCTIONS, Czechoslovak journal of Physics, 46, 1996, pp. 1311-1312
Citations number
3
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
3
Pages
1311 - 1312
Database
ISI
SICI code
0011-4626(1996)46:<1311:IOTSOT>2.0.ZU;2-2
Abstract
We report tunneling measurements on specially designed YBa2Cu3O7-delta bicrystal Josephson junctions. A strong anisotropy in the characteris tic voltage I(c)R(n) of the Josephson junctions in the a-b plane was o bserved. The theoretical analysis shows that the tunneling can be expl ained as combined effect of the presence of nodes in the superconducti ng wave function, either generalized s-wave with 8 nodes or dx(2)-y(2) -wave, and strong anisotropy of the tunneling matrix elements.