Spin anisotropy due to spin-orbit coupling in optimally hole-doped Ba0:67K0:33Fe2As2

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dc.citation.articleNumber214516en_US
dc.citation.issueNumber21en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber94en_US
dc.contributor.authorSong, Yuen_US
dc.contributor.authorMan, Haoranen_US
dc.contributor.authorZhang, Ruien_US
dc.contributor.authorLu, Xingyeen_US
dc.contributor.authorZhang, Chenglinen_US
dc.contributor.authorWang, Mengen_US
dc.contributor.authorTan, Guotaien_US
dc.contributor.authorRegnault, L.-P.en_US
dc.contributor.authorSu, Yixien_US
dc.contributor.authorKang, Jianen_US
dc.contributor.authorFernandes, Rafael M.en_US
dc.contributor.authorDai, Pengchengen_US
dc.date.accessioned2017-02-24T19:14:11Zen_US
dc.date.available2017-02-24T19:14:11Zen_US
dc.date.issued2016en_US
dc.description.abstractWe use polarized inelastic neutron scattering to study the temperature and energy dependence of spin space anisotropies in the optimally-hole-doped iron pnictide Ba0.67K0.33Fe2As2 (Tc=38 K). In the superconducting state, while the high-energy part of the magnetic spectrum is nearly isotropic, the low-energy part displays a pronounced anisotropy, manifested by a c-axis polarized resonance. We also observe that the spin anisotropy in superconducting Ba0.67K0.33Fe2As2 extends to higher energies compared with electron-doped BaFe2−xTMxAs2 (TM=Co, Ni) and isovalent-doped BaFe2As1.4P0.6, suggesting a connection between Tc and the energy scale of the spin anisotropy. In the normal state, the low-energy spin anisotropy for hole- and electron-doped iron pnictides near optimal superconductivity onset at temperatures similar to the temperatures at which the elastoresistance deviates from Curie–Weiss behavior, pointing to a possible connection between the two phenomena. Our results highlight the relevance of the spin-orbit coupling to the superconductivity of the iron pnictides.en_US
dc.identifier.citationSong, Yu, Man, Haoran, Zhang, Rui, et al.. "Spin anisotropy due to spin-orbit coupling in optimally hole-doped Ba0:67K0:33Fe2As2." <i>Physical Review B,</i> 94, no. 21 (2016) American Physical Society: http://dx.doi.org/10.1103/PhysRevB.94.214516.en_US
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.94.214516en_US
dc.identifier.urihttps://hdl.handle.net/1911/94007en_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.titleSpin anisotropy due to spin-orbit coupling in optimally hole-doped Ba0:67K0:33Fe2As2en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
local.sword.agentConverisen_US
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