Quantum Phases of the Shastry-Sutherland Kondo Lattice: Implications for the Global Phase Diagram of Heavy-Fermion Metals

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dc.citation.articleNumber176402en_US
dc.citation.issueNumber17en_US
dc.citation.journalTitlePhysical Review Lettersen_US
dc.citation.volumeNumber113en_US
dc.contributor.authorPixley, J.H.en_US
dc.contributor.authorYu, Rongen_US
dc.contributor.authorSi, Qimiaoen_US
dc.date.accessioned2017-06-05T20:44:20Zen_US
dc.date.available2017-06-05T20:44:20Zen_US
dc.date.issued2014en_US
dc.description.abstractConsiderable recent theoretical and experimental effort has been devoted to the study of quantum criticality and novel phases of antiferromagnetic heavy-fermion metals. In particular, quantum phase transitions have been discovered in heavy-fermion compounds with geometrical frustration. These developments have motivated us to study the competition between the Ruderman-Kittel-Kasuya-Yosida and Kondo interactions on the Shastry-Sutherland lattice. We determine the zero-temperature phase diagram as a function of magnetic frustration and Kondo coupling within a slave-fermion approach. Pertinent phases include the valence bond solid and heavy Fermi liquid. In the presence of antiferromagnetic order, our zero-temperature phase diagram is remarkably similar to the global phase diagram proposed earlier based on general grounds. We discuss the implications of our results for the experiments on Yb2Pt2Pb and related compounds.en_US
dc.identifier.citationPixley, J.H., Yu, Rong and Si, Qimiao. "Quantum Phases of the Shastry-Sutherland Kondo Lattice: Implications for the Global Phase Diagram of Heavy-Fermion Metals." <i>Physical Review Letters,</i> 113, no. 17 (2014) American Physical Society: https://doi.org/10.1103/PhysRevLett.113.176402.en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.113.176402en_US
dc.identifier.urihttps://hdl.handle.net/1911/94803en_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.titleQuantum Phases of the Shastry-Sutherland Kondo Lattice: Implications for the Global Phase Diagram of Heavy-Fermion Metalsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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