ISSN:
1434-6036
Keywords:
70
;
74.72-h
;
74.62-c
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Gap coupling interaction is a necessary consequence if a superconducting system has a gap distribution, as found for the high-T c oxocuprates, since the interaction has to result in a single critical temperatureT c . This paper shows with the help of BCS gap-coupling equations and values of gap distribution, including gap weights from experiments, thatT c values as observed are easily achievable with reasonable diagonal and off-diagonal coupling coefficients. Of course our phenomenologically derived coupling coefficients have to be verified from purely theoretical grounds. Most importantly, it is found that the highest gap contributes dominantly toT c in spite of its low weight. Predictions for a point-contact tunneling spectroscopy are made.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01312170
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