Constrain on possible pairing symmetry in a two-orbital model of FeAs-based superconductors

Abstract

In this work, we establish a few exact identities through commutation of intra-orbital and inter-orbital on-site pairings with a two-orbital model describing newly discovered FeAs-based superconductors. Applying the conclusion drawn from rigorous relation and physical interpretation, we give constraints on the possible symmetries of the superconducting pairing of the model. Hence the favorable pairings in newly discovered high-temperature oxypnictide superconductors are proposed.

5 pages, 2 figures

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Cited by in corpus (8)

• Three orbital model for the iron-based superconductors
• Magnetic and Metallic State at Intermediate Hubbard U Coupling in Multiorbital Models for Undoped Fe Pnictides
• Classification of multipole superconductivity in multi-orbital systems and its implications
• On interband pairing in multiorbital systems
• Pairing symmetry and properties of iron-based high temperature superconductors
• Theory of tunnelling into a multi-band superconductor: decoherence and interference
• Minimal-size Real Space d-wave Pairing Operator in CuO2 Planes
• Metal-insulator transition and superconductivity in the two-orbital Hubbard-Holstein model for iron-based superconductors