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Topotactic fluorination of intermetallics as an efficient route towards quantum materials

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVANEY, Jean-Baptiste
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVIGNOLLE, Baptiste
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDEMOURGUES, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDIN, Etienne
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDURAND, Etienne
hal.structure.identifierPlateforme Aquitaine de Caractérisation des Matériaux [PLACAMAT]
dc.contributor.authorLABRUGÈRE, Christine
hal.structure.identifierUniversità degli Studi di Cagliari = University of Cagliari [UniCa]
dc.contributor.authorBERNARDINI, Fabio
hal.structure.identifierThéorie de la Matière Condensée [NEEL - TMC]
dc.contributor.authorCANO, Andrés
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTENCÉ, Sophie
dc.date.issued2022-03-18
dc.identifier.issn2041-1723
dc.description.abstractEnIntermetallics represent an important family of compounds, in which insertion of light elements (H, B, C, N) has been widely explored for decades to synthesize novel phases and promote functional materials such as permanent magnets or magnetocalorics. Fluorine insertion, however, has remained elusive so far since the strong reactivity of this atypical element, the most electronegative one, tends to produce the chemical decomposition of these systems. Here, we introduce a topochemical method to intercalate fluorine atoms into intermetallics, using perfluorocarbon reactant with covalent C-F bonds. We demonstrate the potential of this approach with the synthesis of non-stoichiometric mixed anion (Si-F) LaFeSiF x single-crystals, which are further shown to host FeSi-based superconductivity. Fluorine topochemistry on intermetallics is thus proven to be an effective route to provide functional materials where the coexistence of ionic and metallo-covalent blocks, and their interactions through inductive effects, is at the root of their functional properties.
dc.description.sponsorshipNovel As/Se-free Iron-based Superconductors - ANR-18-CE30-0018
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enTopotactic fluorination of intermetallics as an efficient route towards quantum materials
dc.typeArticle de revue
dc.identifier.doi10.1038/s41467-022-29043-8
dc.subject.halChimie/Matériaux
bordeaux.journalNature Communications
bordeaux.page1462
bordeaux.volume13
bordeaux.peerReviewedoui
hal.identifierhal-03616890
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03616890v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature%20Communications&rft.date=2022-03-18&rft.volume=13&rft.spage=1462&rft.epage=1462&rft.eissn=2041-1723&rft.issn=2041-1723&rft.au=VANEY,%20Jean-Baptiste&VIGNOLLE,%20Baptiste&DEMOURGUES,%20Alain&GAUDIN,%20Etienne&DURAND,%20Etienne&rft.genre=article


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