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dc.contributor.authorKhalyavin, D.D.
Adroja, D.T.
Manuel, P.
Daoud-Aladine, A.
Kosaka, M.
Kondo, K.
McEwen, K.A.
Pixley, J.H.
Si, Qimiao
dc.date.accessioned 2016-04-05T20:14:03Z
dc.date.available 2016-04-05T20:14:03Z
dc.date.issued 2013
dc.identifier.citation Khalyavin, 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." Physical Review B, 87, no. 22 (2013) American Physical Society: 220406(R). http://dx.doi.org/10.1103/PhysRevB.87.220406.
dc.identifier.urihttps://hdl.handle.net/1911/88858
dc.description.abstract The 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.
dc.language.iso eng
dc.publisher American Physical Society
dc.rights Article 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.title Field-induced long-range magnetic order in the spin-singlet ground-state system YbAl3C3: Neutron diffraction study
dc.type Journal article
dc.contributor.funder National Science Foundation
dc.contributor.funder Welch Foundation
dc.citation.journalTitle Physical Review B
dc.citation.volumeNumber 87
dc.citation.issueNumber 22
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.87.220406
dc.identifier.grantID DMR-1006985 (National Science Foundation)
dc.identifier.grantID C-1411 (Welch Foundation)
dc.type.publication publisher version
dc.citation.firstpage 220406(R)


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