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Nodal multigap superconductivity in the anisotropic iron-based compound RbCa2Fe4As4F2

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dc.contributor.authorTorsello, D.
dc.contributor.authorPiatti, E.
dc.contributor.authorYi, X.
dc.contributor.authorXing, X.
dc.contributor.authorUmmarino, G. A.
dc.date.accessioned2024-12-26T07:39:53Z
dc.date.available2024-12-26T07:39:53Z
dc.date.issued2022
dc.description.abstract© 2022, The Author(s).The 12442 compounds are a recently discovered family of iron-based superconductors, that share several features with the cuprates due to their strongly anisotropic structure, but are so far poorly understood. Here, we report on the gap structure and anisotropy of RbCa2(Fe1−xNix)4As4F2 single crystals, investigated by a combination of directional point-contact Andreev-reflection spectroscopy and coplanar waveguide resonator measurements. Two gaps were identified, with clear signatures of d-wave-like nodal structures which persist upon Ni doping, well described by a two-band d − d state with symmetry-imposed nodes. A large London penetration depth anisotropy was revealed, weakly dependent on temperature and fully compatible with the d − d model.
dc.identifier.citationNodal multigap superconductivity in the anisotropic iron-based compound RbCa2Fe4As4F2 / Torsello, D. [et al.] // npj Quantum Materials. - 2022. - 7. - № 1. - 10.1038/s41535-021-00419-1
dc.identifier.doi10.1038/s41535-021-00419-1
dc.identifier.urihttps://www.doi.org/10.1038/s41535-021-00419-1
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85123192950&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000744509800001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/28661
dc.relation.ispartofnpj Quantum Materials
dc.titleNodal multigap superconductivity in the anisotropic iron-based compound RbCa2Fe4As4F2
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume7
relation.isOrgUnitOfPublicationc8407a6f-7272-450d-8d99-032352c76b55
relation.isOrgUnitOfPublication.latestForDiscoveryc8407a6f-7272-450d-8d99-032352c76b55
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