Identifying the pairing mechanism in Fe-As based superconductors: gaps and isotope effects

Details Identifying the pairing mechanism in Fe-As based superconductors: gaps and isotope effects Identifying the pairing mechanism in Fe-As based superconductors: gaps and isotope effects

2009-06-12

arxiv.org/abs/0906.2283v1

Physics

Condensed Matter

Superconductivity

7 pages, 3 figures, 1 table

Scientific paper

The temperature dependencies of the coupled superconducting gaps, observed in Fe-As based superconducting compounds is calculated and a universal temperature scaling observed which is only present if the coupled order parameters both have s-wave symmetry. Predictions for possible isotope effects on the transition temperature are made if phonons are involved in the pairing or polaronic effects are of importance. Comparison to experimental data is given where these are available.

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