Antiferromagnetism enables electron-phonon coupling in iron-based superconductors

Abstract

It is shown that a generic form of an antiferromagnetic wave function opens strong electron-phonon coupling channels in the iron-based superconductors. In the nonmagnetic state these channels exist locally on a single iron atom, but are canceled out between the two iron atoms in the primitive unit cell. Our findings are based on symmetry and the presence of an xz/yz Fermi surface near the M point and thus should be relevant for the known iron-based pnictide or chalcogenide superconductors.

5 pages, 5 figures, with a supplement

References in corpus (5)

• Superconductivity in single-layer films of FeSe with a transition temperature above 100 K
• Effect of Structural Parameters on Superconductivity in Fluorine-Free LnFeAsO1-y (Ln=La,Nd)
• Is LaO${}_{1-x}$F${}_x$FeAs an electron-phonon superconductor ?
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Cited by in corpus (11)

• Competing phases and orbital-selective behaviors in the two-orbital Hubbard-Holstein model
• Probing the direct factor for superconductivity in FeSe-Based Superconductors by Raman Scattering
• Muon spin rotation and infrared spectroscopy study of $B{a}_{1-x}N{a}_{x}F{e}_{2}A{s}_2$
• Phase competition in a one-dimensional three-orbital Hubbard-Holstein model
• Electronic structure, lattice dynamics and magnetism of new ThXAsN (X=Fe,Co,Ni) superconductors: A First Principles Study
• Preliminary Tc calculations for iron-based superconductivity in NaFeAs, LiFeAs, FeSe and nanostructured FeSe/SrTiO3 Superconductors
• Constraints on the total coupling strength to bosons in iron based superconductors
• Scaling of the Fano effect of the in-plane Fe-As phonon and the superconducting critical temperature in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Lattice dynamics in FeSe via inelastic x-ray scattering and first-principles calculations
• Magneto-elastic coupling in Fe-based superconductors
• The antiferromagnetic and phonon-mediated model of the NaFeAs, LiFeAs and FeSe superconductors