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

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dc.citation.articleNumber176402
dc.citation.issueNumber17
dc.citation.journalTitlePhysical Review Letters
dc.citation.volumeNumber113
dc.contributor.authorPixley, J.H.
dc.contributor.authorYu, Rong
dc.contributor.authorSi, Qimiao
dc.date.accessioned2017-06-05T20:44:20Z
dc.date.available2017-06-05T20:44:20Z
dc.date.issued2014
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.
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.
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.113.176402
dc.identifier.urihttps://hdl.handle.net/1911/94803
dc.language.isoeng
dc.publisherAmerican Physical Society
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.
dc.titleQuantum Phases of the Shastry-Sutherland Kondo Lattice: Implications for the Global Phase Diagram of Heavy-Fermion Metals
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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