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dc.contributor.authorSong, Yu
Man, Haoran
Zhang, Rui
Lu, Xingye
Zhang, Chenglin
Wang, Meng
Tan, Guotai
Regnault, L.-P.
Su, Yixi
Kang, Jian
Fernandes, Rafael M.
Dai, Pengcheng
dc.date.accessioned 2017-02-24T19:14:11Z
dc.date.available 2017-02-24T19:14:11Z
dc.date.issued 2016
dc.identifier.citation Song, Yu, Man, Haoran, Zhang, Rui, et al.. "Spin anisotropy due to spin-orbit coupling in optimally hole-doped Ba0:67K0:33Fe2As2." Physical Review B, 94, no. 21 (2016) American Physical Society: http://dx.doi.org/10.1103/PhysRevB.94.214516.
dc.identifier.urihttps://hdl.handle.net/1911/94007
dc.description.abstract We 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.
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 Spin anisotropy due to spin-orbit coupling in optimally hole-doped Ba0:67K0:33Fe2As2
dc.type Journal article
dc.citation.journalTitle Physical Review B
dc.citation.volumeNumber 94
dc.citation.issueNumber 21
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.94.214516
dc.type.publication publisher version
local.sword.agent Converis
dc.citation.articleNumber 214516


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