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Frustration on a centered pyrochlore lattice in metal-organic frameworks

dc.contributor.authorNUTAKKI, Rajah
dc.contributor.authorRÖSS-OHLENROTH, Richard
dc.contributor.authorVOLKMER, Dirk
dc.contributor.authorJESCHE, Anton
dc.contributor.authorVON NIDDA, Hans-Albrecht Krug
dc.contributor.authorTSIRLIN, Alexander A.
dc.contributor.authorGEGENWART, Philipp
dc.contributor.authorPOLLET, Lode
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorJAUBERT, L.D.C.
dc.date.issued2023-05-01
dc.identifier.issn2643-1564
dc.description.abstractEnGeometric frustration inhibits magnetic systems from ordering, opening a window to unconventional phases of matter. The paradigmatic frustrated lattice in three dimensions to host a spin liquid is the pyrochlore, although there remain few experimental compounds thought to realize such a state. Here we go beyond the pyrochlore via molecular design in the metal-azolate framework [Mn(II)(ta)2], which realizes a closely related centred pyrochlore lattice of Mn-spins with S=5/2. Despite a Curie-Weiss temperature of −21 K indicating the energy scale of magnetic interactions, [Mn(II)(ta)2] orders at only 430 mK, putting it firmly in the category of highly frustrated magnets. Comparing magnetization and specific heat measurements to numerical results for a minimal Heisenberg model, we predict that this material displays distinct features of a classical spin liquid with a structure factor reflecting Coulomb physics in the presence of charges.
dc.description.sponsorshipDesign de la frustration: effets de surface et désordre - ANR-18-CE30-0011
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enFrustration on a centered pyrochlore lattice in metal-organic frameworks
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevResearch.5.L022018
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Electrons fortement corrélés [cond-mat.str-el]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Mécanique statistique [cond-mat.stat-mech]
dc.identifier.arxiv2203.08780
dc.description.sponsorshipEuropeFP7/ERC Consolidator Grant QSIMCORR, No. 771891
bordeaux.journalPhysical Review Research
bordeaux.pageL022018
bordeaux.volume5
bordeaux.peerReviewedoui
hal.identifierhal-03617124
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03617124v1
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