A unified description of cuprate and iron arsenide superconductors

Abstract

We propose a unified description of cuprate and iron-based superconductivity. Consistency with magnetic structure inferred from neutron scattering implies significant constraints on the symmetry of the pairing gap for the iron-based superconductors. We find that this unification requires the orbital pairing formfactors for the iron arsenides to differ fundamentally from those for cuprates at the microscopic level.

Keywords

iron arsenide superconductor / cuprate superconductor / pairing formfactor / SU(4) dynamical symmetry