Short-range cluster spin glass near optimal superconductivity in BaFe2−xNixAs2

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dc.citation.articleNumber24509
dc.citation.issueNumber2
dc.citation.journalTitlePhysical Review B
dc.citation.volumeNumber90
dc.contributor.authorLu, Xingye
dc.contributor.authorTam, David W.
dc.contributor.authorZhang, Chenglin
dc.contributor.authorLuo, Huiqian
dc.contributor.authorWang, Meng
dc.contributor.authorZhang, Rui
dc.contributor.authorHarriger, Leland W.
dc.contributor.authorKeller, T.
dc.contributor.authorKeimer, B.
dc.contributor.authorRegnault, L.-P.
dc.contributor.authorMaier, Thomas A.
dc.contributor.authorDai, Pengcheng
dc.date.accessioned2017-06-01T18:53:00Z
dc.date.available2017-06-01T18:53:00Z
dc.date.issued2014
dc.description.abstractHigh-temperature superconductivity in iron pnictides occurs when electrons are doped into their antiferromagnetic (AF) parent compounds. In addition to inducing superconductivity, electron doping also changes the static commensurate AF order in the undoped parent compounds into short-range incommensurate AF order near optimal superconductivity. Here we use neutron scattering to demonstrate that the incommensurate AF order in BaFe2−xNixAs2 is not a spin-density wave arising from the itinerant electrons in nested Fermi surfaces, but is consistent with a cluster spin glass in the matrix of the superconducting phase. Therefore, optimal superconductivity in iron pnictides coexists and competes with a mesoscopically separated cluster spin glass phase, much different from the homogeneous coexisting AF and superconducting phases in the underdoped regime.
dc.identifier.citationLu, Xingye, Tam, David W., Zhang, Chenglin, et al.. "Short-range cluster spin glass near optimal superconductivity in BaFe2−xNixAs2." <i>Physical Review B,</i> 90, no. 2 (2014) American Physical Society: https://doi.org/10.1103/PhysRevB.90.024509.
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.90.024509
dc.identifier.urihttps://hdl.handle.net/1911/94749
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.titleShort-range cluster spin glass near optimal superconductivity in BaFe2−xNixAs2
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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