Abstract
A multi-band model within the BCS framework is proposed for the description of iron-based oxypnictide superconductors. A s-wave pairing symmetry and different doping values are considered. This model is used to describe some properties of the oxypnictide SmFeAsO1−x Fx superconductor. The electron-phonon coupling of the corresponding Fe in-plane breathing mode is considered. The Fe isotope effect is evaluated as function of the coupling parameter as well as other relevant parameters of the model.
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