Unconventional and conventional quantum criticalities in CeRh0.58Ir0.42In5

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dc.citation.articleNumber6en_US
dc.citation.journalTitlenpj Quantum Materialsvolumeen_US
dc.citation.volumeNumber3en_US
dc.contributor.authorLuo, Yongkangen_US
dc.contributor.authorLu, Xinen_US
dc.contributor.authorDioguardi, Adam P.en_US
dc.contributor.authorRosa, Priscila S.F.en_US
dc.contributor.authorBauer, Eric D.en_US
dc.contributor.authorSi, Qimiaoen_US
dc.contributor.authorThompson, Joe D.en_US
dc.date.accessioned2018-07-16T17:48:56Zen_US
dc.date.available2018-07-16T17:48:56Zen_US
dc.date.issued2018en_US
dc.description.abstractAn appropriate description of the state of matter that appears as a second order phase transition is tuned toward zero temperature, viz. quantum-critical point (QCP), poses fundamental and still not fully answered questions. Experiments are needed both to test basic conclusions and to guide further refinement of theoretical models. Here, charge and entropy transport properties as well as AC specific heat of the heavy-fermion compound CeRh0.58Ir0.42In5, measured as a function of pressure, reveal two qualitatively different QCPs in aﾠsinglematerial driven by a single non-symmetry-breaking tuning parameter. A discontinuous sign-change jump in thermopower suggests an unconventional QCP atﾠpc1ﾠaccompanied by an abrupt Fermi-surface reconstruction that is followed by a conventional spin-density-wave critical point atﾠpc2ﾠacross which the Fermi surface evolves smoothly to a heavy Fermi-liquid state. These experiments are consistent with some theoretical predictions, including the sequence of critical points and the temperature dependence of the thermopower in their vicinity.en_US
dc.identifier.citationLuo, Yongkang, Lu, Xin, Dioguardi, Adam P., et al.. "Unconventional and conventional quantum criticalities in CeRh0.58Ir0.42In5." <i>npj Quantum Materialsvolume,</i> 3, (2018) Springer Nature: https://doi.org/10.1038/s41535-018-0080-9.en_US
dc.identifier.doihttps://doi.org/10.1038/s41535-018-0080-9en_US
dc.identifier.urihttps://hdl.handle.net/1911/102424en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleUnconventional and conventional quantum criticalities in CeRh0.58Ir0.42In5en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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