Low-carrier density and fragile magnetism in a Kondo lattice system

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dc.citation.articleNumber085120en_US
dc.citation.issueNumber8en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber99en_US
dc.contributor.authorRai, Binod K.en_US
dc.contributor.authorOswald, Iain W.H.en_US
dc.contributor.authorBan, Wenjingen_US
dc.contributor.authorHuang, C.-L.en_US
dc.contributor.authorLoganathan, V.en_US
dc.contributor.authorHallas, A.M.en_US
dc.contributor.authorWilson, M.N.en_US
dc.contributor.authorLuke, G.M.en_US
dc.contributor.authorHarriger, L.en_US
dc.contributor.authorHuang, Q.en_US
dc.contributor.authorLi, Y.en_US
dc.contributor.authorDzsaber, Samien_US
dc.contributor.authorChan, Julia Y.en_US
dc.contributor.authorWang, N.L.en_US
dc.contributor.authorPaschen, Silkeen_US
dc.contributor.authorLynn, J.W.en_US
dc.contributor.authorNevidomskyy, Andriy H.en_US
dc.contributor.authorDai, Pengchengen_US
dc.contributor.authorSi, Q.en_US
dc.contributor.authorMorosan, E.en_US
dc.contributor.orgRice Center for Quantum Materialsen_US
dc.date.accessioned2019-08-13T15:19:41Zen_US
dc.date.available2019-08-13T15:19:41Zen_US
dc.date.issued2019en_US
dc.description.abstractKondo-based semimetals and semiconductors are of extensive current interest as a viable platform for strongly correlated states in the dilute carrier limit. It is thus important to explore the routes to understand such systems. One established pathway is through the Kondo effect in metallic nonmagnetic analogs, in the so called half-filling case of one conduction electron and oneﾠ4fﾠelectron per site. Here, we demonstrate that Kondo-based semimetals develop out of conduction electrons with a low-carrier density in the presence of an even number of rare-earth sites. We do so by studying the Kondo materialﾠYb3Ir4Ge13ﾠalong with its closed-4f-shell counterpart,ﾠLu3Ir4Ge13. Through magnetotransport, optical conductivity, and thermodynamic measurements, we establish that the correlated semimetallic state ofﾠYb3Ir4Ge13ﾠbelow its Kondo temperature originates from the Kondo effect of a low-carrier conduction-electron background. In addition, it displays fragile magnetism at very low temperatures, which in turn, can be tuned to a Griffiths-phase-like regime through Lu-for-Yb substitution. These findings are connected with recent theoretical studies in simplified models. Our results can pave the way to exploring strong correlation physics in a semimetallic environment.en_US
dc.identifier.citationRai, Binod K., Oswald, Iain W.H., Ban, Wenjing, et al.. "Low-carrier density and fragile magnetism in a Kondo lattice system." <i>Physical Review B,</i> 99, no. 8 (2019) American Physical Society: https://doi.org/10.1103/PhysRevB.99.085120.en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.99.085120en_US
dc.identifier.urihttps://hdl.handle.net/1911/106229en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleLow-carrier density and fragile magnetism in a Kondo lattice systemen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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