Tuning the Magnetic Quantum Criticality of Artificial Kondo Superlattices CeRhIn5/YbRhIn5

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dc.citation.articleNumber206401
dc.citation.issueNumber20en_US
dc.citation.journalTitlePhysical Review Lettersen_US
dc.citation.volumeNumber116en_US
dc.contributor.authorIshii, T.en_US
dc.contributor.authorToda, R.en_US
dc.contributor.authorHanaoka, Y.en_US
dc.contributor.authorTokiwa, Y.en_US
dc.contributor.authorShimozawa, M.en_US
dc.contributor.authorKasahara, Y.en_US
dc.contributor.authorEndo, R.en_US
dc.contributor.authorTerashima, T.en_US
dc.contributor.authorNevidomskyy, A.H.en_US
dc.contributor.authorShibauchi, T.en_US
dc.contributor.authorMatsuda, Y.en_US
dc.date.accessioned2017-05-03T16:12:49Z
dc.date.available2017-05-03T16:12:49Z
dc.date.issued2016en_US
dc.description.abstractThe effects of reduced dimensions and the interfaces on antiferromagnetic quantum criticality are studied in epitaxial Kondo superlattices, with alternating n layers of heavy-fermion antiferromagnet CeRhIn5 and seven layers of normal metal YbRhIn5. As n is reduced, the Kondo coherence temperature is suppressed due to the reduction of effective Kondo screening. The Néel temperature is gradually suppressed as n decreases and the quasiparticle mass is strongly enhanced, implying dimensional control toward a quantum critical point. Magnetotransport measurements reveal that a quantum critical point is reached for the n=3 superlattice by applying small magnetic fields. Remarkably, the anisotropy of the quantum critical field is opposite to the expectations from the magnetic susceptibility in bulk CeRhIn5, suggesting that the Rashba spin-orbit interaction arising from the inversion symmetry breaking at the interface plays a key role for tuning the quantum criticality in the two-dimensional Kondo lattice.en_US
dc.identifier.citationIshii, T., Toda, R., Hanaoka, Y., et al.. "Tuning the Magnetic Quantum Criticality of Artificial Kondo Superlattices CeRhIn5/YbRhIn5." <i>Physical Review Letters,</i> 116, no. 20 (2016) American Physical Society: https://doi.org/10.1103/PhysRevLett.116.206401.
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.116.206401en_US
dc.identifier.urihttps://hdl.handle.net/1911/94125
dc.language.isoengen_US
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.titleTuning the Magnetic Quantum Criticality of Artificial Kondo Superlattices CeRhIn5/YbRhIn5en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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