S. Gluzman et Am. Kuznetsov, THEORY OF CHARGE-TRANSFER AT THE HIGH-T-C SUPERCONDUCTOR ELECTROLYTE INTERFACE/, Physical review. B, Condensed matter, 52(13), 1995, pp. 9190-9193
We discuss the kinetics of electrochemical process on the high-T-c sup
erconducting electrodes dependent on the type of superconductivity. Th
e existence of the hump of an appreciable height in the temperature de
pendence of the current clearly points towards the BCS s-type supercon
ductivity, involving a gap in the electronic spectrum. The height of t
he hump should be much less in the case of the unconventional d-wave p
airing, while the absence of the hump is a signal about the importance
of pair-breaking processes typical of the strong-coupling theories or
even about bipolaron (bosonic) mechanism. Low-temperature tails at th
e current/temperature curve are also informative being determined by t
he electronic states within the gap typical of the unconventional d-wa
ve pairing.