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dc.contributor.authorWang, Chong
Zhang, Rui
Wang, Fa
Luo, Huiqian
Regnault, L.P.
Dai, Pengcheng
Li, Yuan
dc.date.accessioned 2016-03-24T18:24:34Z
dc.date.available 2016-03-24T18:24:34Z
dc.date.issued 2013
dc.identifier.citation Wang, Chong, Zhang, Rui, Wang, Fa, et al.. "Longitudinal Spin Excitations and Magnetic Anisotropy in Antiferromagnetically Ordered BaFe2As2." Physical Review X, 3, no. 4 (2013) American Physical Society: 041036. http://dx.doi.org/10.1103/PhysRevX.3.041036.
dc.identifier.urihttps://hdl.handle.net/1911/88642
dc.description.abstract We 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.
dc.language.iso eng
dc.publisher American Physical Society
dc.rights This 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.
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.title Longitudinal Spin Excitations and Magnetic Anisotropy in Antiferromagnetically Ordered BaFe2As2
dc.type Journal article
dc.contributor.funder National Science Foundation
dc.citation.journalTitle Physical Review X
dc.citation.volumeNumber 3
dc.citation.issueNumber 4
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevX.3.041036
dc.identifier.grantID DMR-1063866 (National Science Foundation)
dc.identifier.grantID OISE-0968226 (National Science Foundation)
dc.type.publication publisher version
dc.citation.firstpage 041036


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