Fluctuation conductivity in unconventional superconductors near critical disorder

Hiroto Adachi, Ryusuke Ikeda

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)2848-2851
Number of pages4
Journaljournal of the physical society of japan
Volume70
Issue number10
DOIs
Publication statusPublished - Oct 2001
Externally publishedYes

Keywords

  • Dirty superconductor
  • Fluctuation conductivity
  • SrRuO
  • Unconventional superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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