Ab initio theory of iron-based superconductors

F. Essenberger, A. Sanna, P. Buczek, A. Ernst, L. Sandratskii, E. K.U. Gross

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

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 languageAmerican English
Article number014503
JournalPhysical Review B
Volume94
Issue number1
DOIs
StatePublished - 1 Jul 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2016 American Physical Society.

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