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Nonlocal Kondo coupling and selective doping from cerium <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>f</mml:mi></mml:math> electrons in iron-based superconductors

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSOURD, Jérémy
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTENCÉ, Sophie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDIN, Etienne
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBURDIN, S
dc.date.accessioned2024-01-24T03:39:01Z
dc.date.available2024-01-24T03:39:01Z
dc.date.issued2024
dc.identifier.issn2469-9950
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/187448
dc.description.abstractEnIn this paper, we consider an unconventional doping effect of strongly correlated cerium 4 f electrons in layered intermetallic systems. The conduction electron part of the model is taken to reproduce the hole and electron pockets of iron-based superconductors (FeSCs), and the cerium contribution is studied through an effective tight-binding Hamiltonian arising from the slave-boson mean-field theory of the periodic Anderson model. We show how the consideration of the nonlocal Kondo coupling naturally present in real materials can lead to a pocket-selective doping effect from cerium f electrons. The model is designed for paramagnetic materials of the ZrCuSiAs-type structure such as CeFeSiH, CeFePO, or the high-pressure phase of CeFeAsO. In certain conditions, the model shows a Lifshitz transition which can be induced by either doping or change in the hybridization strength between iron and cerium orbitals. We present some signatures of both pocket-selective doping and Lifshitz transition by means of the density of states at the Fermi level, the static spin susceptibility, the optical conductivity, and Raman spectroscopy.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enNonlocal Kondo coupling and selective doping from cerium <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>f</mml:mi></mml:math> electrons in iron-based superconductors
dc.typeArticle de revue
dc.identifier.doi10.1103/physrevb.109.045117
dc.subject.halChimie/Matériaux
bordeaux.journalPhysical Review B
bordeaux.page045117
bordeaux.volume109
bordeaux.hal.laboratoriesLaboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798*
bordeaux.issue4
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-04410240
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04410240v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Physical%20Review%20B&amp;rft.date=2024&amp;rft.volume=109&amp;rft.issue=4&amp;rft.spage=045117&amp;rft.epage=045117&amp;rft.eissn=2469-9950&amp;rft.issn=2469-9950&amp;rft.au=SOURD,%20J%C3%A9r%C3%A9my&amp;TENC%C3%89,%20Sophie&amp;GAUDIN,%20Etienne&amp;BURDIN,%20S&amp;rft.genre=article


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