A Unified Description of Cuprate and Iron Arsenide Superconductors

TL;DR

This paper presents a unified theoretical framework for understanding both cuprate and iron-based superconductors, highlighting key differences in their orbital pairing mechanisms.

Contribution

It introduces a unified description that constrains pairing symmetries and reveals fundamental differences in orbital pairing formfactors between the two superconductor classes.

Findings

Magnetic structure constraints inform pairing symmetry.

Orbital pairing formfactors differ fundamentally between cuprates and iron arsenides.

Unified description links magnetic properties to superconducting pairing.

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.