Theory of fluctuation conductivity from interband pairing in pnictide superconductors

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Authors
Fanfarillo, L.
Benfatto, L.
Caprara, S.
Castellani, C.
Grilli, M.
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Abstract
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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
Comment: 4 pages, 1 figure; final version
Keywords
Condensed Matter - Superconductivity, Condensed Matter - Strongly Correlated Electrons
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