Longitudinal Spin Excitations and Magnetic Anisotropy in Antiferromagnetically Ordered BaFe2As2

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dc.citation.firstpage41036en_US
dc.citation.issueNumber4en_US
dc.citation.journalTitlePhysical Review Xen_US
dc.citation.volumeNumber3en_US
dc.contributor.authorWang, Chongen_US
dc.contributor.authorZhang, Ruien_US
dc.contributor.authorWang, Faen_US
dc.contributor.authorLuo, Huiqianen_US
dc.contributor.authorRegnault, L.P.en_US
dc.contributor.authorDai, Pengchengen_US
dc.contributor.authorLi, Yuanen_US
dc.date.accessioned2016-03-24T18:24:34Zen_US
dc.date.available2016-03-24T18:24:34Zen_US
dc.date.issued2013en_US
dc.description.abstractWe report on a spin-polarized inelastic neutron-scattering study of spin waves in the antiferromagnetically ordered state of BaFe2As2. Three distinct excitation components are identified, with spins fluctuating along the c axis, perpendicular to the ordering direction in the ab plane and parallel to the ordering direction. While the first two “transverse” components can be described by a linear spin-wave theory with magnetic anisotropy and interlayer coupling, the third “longitudinal” component is generically incompatible with the local-moment picture. It points toward a contribution of itinerant electrons to the magnetism that is already in the parent compound of this family of Fe-based superconductors.en_US
dc.identifier.citationWang, Chong, Zhang, Rui, Wang, Fa, et al.. "Longitudinal Spin Excitations and Magnetic Anisotropy in Antiferromagnetically Ordered BaFe2As2." <i>Physical Review X,</i> 3, no. 4 (2013) American Physical Society: 041036. http://dx.doi.org/10.1103/PhysRevX.3.041036.en_US
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevX.3.041036en_US
dc.identifier.urihttps://hdl.handle.net/1911/88642en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsThis article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.titleLongitudinal Spin Excitations and Magnetic Anisotropy in Antiferromagnetically Ordered BaFe2As2en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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