The fluctuation conductivity σS in bulk superconductors with non s-wave pairing and with nonmagnetic disorder of strength D is studied at low T and within the Gaussian approximation. It is shown by assuming a quasi two-dimensional (2D) electronic state that, only if the gap function dμ (p) is, as in a 2D p-wave pairing state, linear in the in-plane (relative) momentum p⊥, the in-plane fluctuation conductivity on the line D = Dc is weakly divergent in low T limit. The present result may be useful in clarifying the true gap function of spin-triplet Sr2RuO4 through resistivity measurements.
- Dirty superconductor
- Fluctuation conductivity
- Unconventional superconductivity
ASJC Scopus subject areas
- Physics and Astronomy(all)