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 Fermi surface near the M point and thus should be relevant for the known iron-based pnictide or chalcogenide superconductors.
- Received 17 December 2015
- Revised 23 August 2016
DOI:https://doi.org/10.1103/PhysRevB.94.104505
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