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Evidence of nodal superconductivity in LaFeSiH

hal.structure.identifierRamakrishna Vivekananda Mission University [Kolkata]
dc.contributor.authorBHATTACHARYYA, A.
hal.structure.identifierMagnétisme et Supraconductivité [NEEL - MagSup]
dc.contributor.authorRODIÈRE, Pierre
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVANEY, Jean-Baptiste
hal.structure.identifier​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ISIS Neutron and Muon Source [ISIS]
dc.contributor.authorBISWAS, P.
hal.structure.identifier​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ISIS Neutron and Muon Source [ISIS]
dc.contributor.authorHILLIER, A.
hal.structure.identifierUniversità degli Studi di Cagliari = University of Cagliari [UniCa]
dc.contributor.authorBOSIN, A.
hal.structure.identifierUniversità degli Studi di Cagliari = University of Cagliari [UniCa]
dc.contributor.authorBERNARDINI, F.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTENCÉ, Sophie
hal.structure.identifierUniversity of Johannesburg [South Africa] [UJ]
hal.structure.identifier​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ISIS Neutron and Muon Source [ISIS]
dc.contributor.authorADROJA, D.
hal.structure.identifierThéorie de la Matière Condensée [NEEL - TMC]
dc.contributor.authorCANO, Andrés
dc.date.issued2020-06
dc.identifier.issn2469-9950
dc.description.abstractEnUnconventional superconductivity has recently been discovered in the iron-based superconducting silicide LaFeSiH. By using the complementary techniques of muon spin rotation, tunneling diode oscillator, and density-functional theory, we investigate the magnetic penetration depth and thereby the superconducting gap of this high-temperature superconductor. We find that the magnetic penetration depth displays a sub-T2 behavior in the low-temperature regime below Tc/3, which evidences a nodal structure of the gap (or a gap with very deep minima). Even if the topology of the computed Fermi surface is compatible with the s±-wave case with accidental nodes, its nesting and orbital-content features may eventually result in a d-wave state, which is more unusual for high-temperature superconductors of this class.
dc.description.sponsorshipNovel As/Se-free Iron-based Superconductors
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enEvidence of nodal superconductivity in LaFeSiH
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevB.101.224502
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]
dc.subject.halChimie/Matériaux
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Supraconductivité [cond-mat.supr-con]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Electrons fortement corrélés [cond-mat.str-el]
dc.identifier.arxiv1910.13258v2
bordeaux.journalPhysical Review B
bordeaux.page224502
bordeaux.volume101
bordeaux.issue22
bordeaux.peerReviewedoui
hal.identifierhal-02733675
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02733675v1
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