Theory of fluctuation conductivity from interband pairing in pnictide superconductors

Abstract

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

4 pages, 1 figure; final version

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Cited by in corpus (12)

• Multiorbital effects on the transport and the superconducting fluctuations in LiFeAs
• Spin-orbital interplay and topology in the nematic phase of iron pnictides
• Measurements of the superconducting fluctuations in optimally-doped BaFe${}_{2-x}$Ni${}_x$As${}_2$ under high magnetic fields: Probing the 3D anisotropic Ginzburg-Landau approach
• Measurements of the fluctuation-induced in-plane magnetoconductivity at high reduced temperatures and magnetic fields in the iron arsenide BaFe(2-x)NixAs2
• Dynamic properties of superconductors: Anderson-Bogoliubov mode and Berry phase in BCS and BEC regimes
• Anisotropy of the superconducting fluctuations in multiband superconductors: the case of LiFeAs
• Large increase of the anisotropy factor in the overdoped region of Ba(Fe${}_{1-x}$Ni${}_x$)${}_2$As${}_2$ as probed by fluctuation spectroscopy
• Shrinking of fluctuation region in a two-band superconductor
• Superconductivity with repulsion: a variational approach
• Fluctuation conductivity in ultraclean multicomponent superconductors
• Unveiling a Hidden Percolation Transition in Monitored Clifford Circuits: Inroads from ZX-Calculus
• Robustness of the Kohn-Luttinger mechanism against symmetry breaking