Two-dimensional magnetic interactions in LaFeAsO

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dc.contributor.author Ramazanoglu, Mehmet
dc.contributor.author Lamsal, J.
dc.contributor.author Tucker, Gregory
dc.contributor.author Yan, J.-Q.
dc.contributor.author Calder, S.
dc.contributor.author Guidi, T.
dc.contributor.author Perring, T.
dc.contributor.author McCallum, R.
dc.contributor.author Lograsso, Thomas
dc.contributor.author Kreyssig, Andreas
dc.contributor.author McQueeney, Robert
dc.contributor.department Ames National Laboratory
dc.date 2018-02-13T14:26:43.000
dc.date.accessioned 2020-06-29T23:27:39Z
dc.date.available 2020-06-29T23:27:39Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2013
dc.date.embargo 2013-09-20
dc.date.issued 2013-04-30
dc.description.abstract <p>Inelastic neutron scattering measurements demonstrate that the magnetic interactions in antiferromagnetic LaFeAsO are two dimensional. Spin-wave velocities within the Fe layer and the magnitude of the spin gap are similar to the AFe<sub>2</sub>As<sub>2</sub> based materials. However, the ratio of interlayer and intralayer exchange is found to be less than ∼10−4 in LaFeAsO, very similar to the cuprates, and ∼100 times smaller than that found in AFe<sub>2</sub>As<sub>2</sub> compounds. The results suggest that the effective dimensionality of the magnetic system is highly variable in the parent compounds of the iron arsenides and weak three-dimensional interactions may limit the maximum attainable superconducting T<sub>c</sub>.</p>
dc.description.comments <p>This article is from <em>Physical Review B </em>87 (2013): 140509(R), doi:<a href="http://dx.doi.org/10.1103/PhysRevB.87.140509" target="_blank">10.1103/PhysRevB.87.140509</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ameslab_pubs/43/
dc.identifier.articleid 1031
dc.identifier.contextkey 4608745
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/43
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/8001
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_pubs/43/2013_RamazanogluM_TwoDimensionalMagnetic.pdf|||Sat Jan 15 00:14:31 UTC 2022
dc.source.uri 10.1103/PhysRevB.87.140509
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Metallurgy
dc.subject.keywords Physics and Astronomy
dc.title Two-dimensional magnetic interactions in LaFeAsO
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 316ee29f-99a9-49bc-a048-0f43caf97aa5
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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