Abstract
We report a first-principles study of the superconducting critical temperature and other properties of Fe-based superconductors taking into account, on equal footing, phonon, charge, and spin-fluctuation mediated Cooper pairing. We show that in FeSe this leads to a modulated s± gap symmetry and that the antiferromagnetic paramagnons are the leading mechanism for superconductivity in FeSe, overcoming the strong repulsive effect of both phonons and charge pairing.
Original language | English |
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Article number | 014503 |
Journal | Physical Review B |
Volume | 94 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jul 2016 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 American Physical Society.