Theory of fluctuation conductivity from interband pairing in pnictide superconductors

Details Theory of fluctuation conductivity from interband pairing in pnictide superconductors Theory of fluctuation conductivity from interband pairing in pnictide superconductors

2009-02-02

arxiv.org/abs/0902.0303v2

Phys. Rev. B 79, 172508 (2009)

Physics

Condensed Matter

Superconductivity

4 pages, 1 figure; final version

Scientific paper

10.1103/PhysRevB.79.172508

We derive the effective action for superconducting fluctuations in a four-band model for pnictides, discussing the emergence of a single critical mode out of a dominant interband pairing mechanism. We then apply our model to calculate the paraconductivity in two-dimensional and layered three-dimensional systems, and compare our results with recent resistivity measurements in SmFeAsOF

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