Field-induced long-range magnetic order in the spin-singlet ground-state system YbAl3C3: Neutron diffraction study

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dc.citation.firstpage220406(R)en_US
dc.citation.issueNumber22en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber87en_US
dc.contributor.authorKhalyavin, D.D.en_US
dc.contributor.authorAdroja, D.T.en_US
dc.contributor.authorManuel, P.en_US
dc.contributor.authorDaoud-Aladine, A.en_US
dc.contributor.authorKosaka, M.en_US
dc.contributor.authorKondo, K.en_US
dc.contributor.authorMcEwen, K.A.en_US
dc.contributor.authorPixley, J.H.en_US
dc.contributor.authorSi, Qimiaoen_US
dc.date.accessioned2016-04-05T20:14:03Zen_US
dc.date.available2016-04-05T20:14:03Zen_US
dc.date.issued2013en_US
dc.description.abstractThe 4f-electron system YbAl3C3 with a nonmagnetic spin-dimer ground state has been studied by neutron diffraction in an applied magnetic field. A long-range magnetic order involving both ferromagnetic and antiferromagnetic components has been revealed above the critical field HC∼6 T at temperature T=0.05 K. The magnetic structure indicates that the geometrical frustration of the prototype hexagonal lattice is not fully relieved in the low-temperature orthorhombic phase. The suppression of magnetic ordering by the remanent frustration is the key factor stabilizing the nonmagnetic singlet ground state in zero field. Temperature-dependent measurements in the applied field H=12 T revealed that the long-range ordering persists up to temperatures significantly higher than the spin gap, indicating that this phase is not directly related to the singlet-triplet excitation. Combining our neutron diffraction results with the previously published phase diagram, we support the existence of an intermediate disordered phase as the first excitation from the nonmagnetic singlet ground state. Based on our results, we propose YbAl3C3 as a material for studying the quantum phase transitions of heavy-fermion metals under the influence of geometrical frustration.en_US
dc.identifier.citationKhalyavin, D.D., Adroja, D.T., Manuel, P., et al.. "Field-induced long-range magnetic order in the spin-singlet ground-state system YbAl3C3: Neutron diffraction study." <i>Physical Review B,</i> 87, no. 22 (2013) American Physical Society: 220406(R). http://dx.doi.org/10.1103/PhysRevB.87.220406.en_US
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.87.220406en_US
dc.identifier.urihttps://hdl.handle.net/1911/88858en_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.titleField-induced long-range magnetic order in the spin-singlet ground-state system YbAl3C3: Neutron diffraction studyen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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