ISSN:
0392-6737
Keywords:
Proximity effects, tunneling phenomena and Josephson effects
;
Superconducting perovskites and related structures
;
Conference proceedings
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Summary We discuss the influence of the intrinsic surface depression of the order parameter on the temperature dependence of the Josephson critical currentI c(T) and, tentatively, on the quasi-particle tunnelling conductance in a superconductor with a very short coherence length. The comparison with the experiments shows that the presence of a surface-depressed pair potential can explain the large deviations of theI c(T) from the ideal BCS behaviour that we recently observed in Bi2Sr2CaCu2O8+x Josephson break junctions and could mimic the presence of a broadening in the Superconductor-Insulator-Normal tunnelling conductance of the same high-T c superconductor.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02471855
