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arXiv · 2302.09702

Triplet pairing, orbital selectivity and correlations in Iron-based superconductors

Yashar Komijani·Elio Koenig·Piers Coleman
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Abstract

We use a slave-boson approach to study the band renormalization and pair susceptibility in the normal state of Iron-based superconductors in presence of strong Coulomb repulsion and Hund's interaction. Our results show orbital selectivity toward localization of $xy$ orbitals and its interplay with superconductivity. We also compare the recently proposed triplet resonating valence bond theory of superconductivity in Iron-based superconductors with the more conventional $s_\pm$ pairing and show that both favor a superconductivity when the $xy$ orbital is delocalized.

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Yashar Komijani, Elio Koenig, Piers Coleman. 2023-02-20. Triplet pairing, orbital selectivity and correlations in Iron-based superconductors. https://doi.org/10.1103/nx2p-k972

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