Show simple item record

dc.contributor.authorHu, Ding
Zhang, Wenliang
Wei, Yuan
Roessli, Bertrand
Skoulatos, Markos
Regnault, Louis Pierre
Chen, Genfu
Song, Yu
Luo, Huiqian
Li, Shiliang
Dai, Pengcheng
dc.date.accessioned 2017-12-21T18:21:52Z
dc.date.available 2017-12-21T18:21:52Z
dc.date.issued 2017
dc.identifier.citation Hu, Ding, Zhang, Wenliang, Wei, Yuan, et al.. "Spin excitation anisotropy in the optimally isovalent-doped superconductor BaFe2(As0.7P0.3)2." Physical Review B, 96, no. 18 (2017) American Physical Society: https://doi.org/10.1103/PhysRevB.96.180503.
dc.identifier.urihttps://hdl.handle.net/1911/98914
dc.description.abstract We use neutron polarization analysis to study spin excitation anisotropy in the optimally isovalent-doped superconductor BaFe2(As0.7P0.3)2 (Tc=30 K). Different from optimally hole- and electron-doped BaFe2As2, where there is a clear spin excitation anisotropy in the paramagnetic tetragonal state well above Tc, we find no spin excitation anisotropy for energies above 2 meV in the normal state of BaFe2(As0.7P0.3)2. Upon entering the superconducting state, significant spin excitation anisotropy develops at the antiferromagnetic (AF) zone center QAF=(1,0,L=odd), while the magnetic spectrum is isotropic at the zone boundary Q=(1,0,L=even). By comparing the temperature, wave vector, and polarization dependence of the spin excitation anisotropy in BaFe2(As0.7P0.3)2 and hole-doped Ba0.67K0.33Fe2As2 (Tc=38 K), we conclude that such anisotropy arises from spin-orbit coupling and is associated with the nearby AF order and superconductivity.
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 excitation anisotropy in the optimally isovalent-doped superconductor BaFe2(As0.7P0.3)2
dc.type Journal article
dc.citation.journalTitle Physical Review B
dc.citation.volumeNumber 96
dc.citation.issueNumber 18
dc.identifier.digital PhysRevB-96-180503
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.96.180503
dc.type.publication publisher version
dc.citation.articleNumber 180503(R)


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record