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Magnetically textured superconductivity in elemental rhenium

Csire, Gábor, Annett, James F, Quintanilla, Jorge, Újfalussy, Balázs (2022) Magnetically textured superconductivity in elemental rhenium. Physical Review B: Condensed Matter and Materials Physics, 106 (2). Article Number L020501. ISSN 0163-1829. (doi:10.1103/PhysRevB.106.L020501) (KAR id:81194)

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Official URL:
https://doi.org/10.1103/PhysRevB.106.L020501

Abstract

Recent μSR measurements revealed remarkable signatures of spontaneous magnetism coexisting with superconductivity in elemental rhenium. Thus, pure rhenium could be the first elemental crystal where unconventional superconductivity is realized in nature. Here we provide a quantitative theory that uncovers the nature of the superconducting instability by incorporating every details of the electronic structure together with spin-orbit coupling and multiorbital physics. We show that conventional s-wave superconductivity combined with strong spin-orbit coupling is inducing even-parity odd-orbital spin triplet Cooper pairs, and in presence of a screw-axis Cooper pairs' migration between the induced equal-spin triplet component leads to an exotic magnetic state with atomic-scale texture. Our first-principles-based model contains two phenomenological parameters that characterizes the pairing interaction fixed by the experimental value of the superconducting transition temperature and the slope of the specific heat, and allows quantitative prediction of the magnetic structure.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevB.106.L020501
Uncontrolled keywords: Physics of Quantum Materials, Superconductors, DFT, First-principles, Condensed Matter Theory
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science
Q Science > QC Physics
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Funders: European Commission (https://ror.org/00k4n6c32)
National Research, Development and Innovation Office (https://ror.org/03g2am276)
Engineering and Physical Sciences Research Council (https://ror.org/0439y7842)
Depositing User: Jorge Quintanilla Tizon
Date Deposited: 13 May 2020 09:15 UTC
Last Modified: 23 Aug 2022 15:48 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/81194 (The current URI for this page, for reference purposes)
Quintanilla, Jorge: https://orcid.org/0000-0002-8572-730X
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