Competing Magnetic Fluctuations in Iron Pnictide Superconductors: Role of Ferromagnetic Spin Correlations Revealed by NMR

dc.contributor.author Wiecki, P.
dc.contributor.author Roy, B.
dc.contributor.author Johnston, David
dc.contributor.author Bud’ko, Sergey
dc.contributor.author Canfield, Paul
dc.contributor.author Furukawa, Yuji
dc.contributor.department Ames National Laboratory
dc.contributor.department Physics and Astronomy
dc.date 2020-03-05T16:21:54.000
dc.date.accessioned 2020-06-30T06:20:53Z
dc.date.available 2020-06-30T06:20:53Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2015
dc.date.issued 2015-09-25
dc.description.abstract <p>In the iron pnictide superconductors, theoretical calculations have consistently shown enhancements of the static magnetic susceptibility at both the stripe-type antiferromagnetic and in-plane ferromagnetic (FM) wave vectors. However, the possible existence of FM fluctuations has not yet been examined from a microscopic point of view. Here, using 75As NMR data, we provide clear evidence for the existence of FM spin correlations in both the hole- and electron-doped BaFe2As2 families of iron-pnictide superconductors. These FM fluctuations appear to compete with superconductivity and are thus a crucial ingredient to understanding the variability of Tc and the shape of the superconducting dome in these and other iron-pnictide families.</p>
dc.description.comments <p>This article is published as Wiecki, P., B. Roy, D. C. Johnston, S. L. Bud’ko, P. C. Canfield, and Y. Furukawa. "Competing magnetic fluctuations in iron pnictide superconductors: role of ferromagnetic spin correlations revealed by NMR." <em>Physical Review Letters</em> 115, no. 13 (2015): 137001. DOI: <a href="http://dx.doi.org/10.1103/PhysRevLett.115.137001" target="_blank">10.1103/PhysRevLett.115.137001</a>. Posted with permission.</p>
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dc.identifier archive/lib.dr.iastate.edu/physastro_pubs/592/
dc.identifier.articleid 1585
dc.identifier.contextkey 16716143
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath physastro_pubs/592
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/57379
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/physastro_pubs/592/2015_CanfieldPaul_CompetingMagnetic.pdf|||Sat Jan 15 01:03:55 UTC 2022
dc.source.uri 10.1103/PhysRevLett.115.137001
dc.subject.disciplines Physics
dc.title Competing Magnetic Fluctuations in Iron Pnictide Superconductors: Role of Ferromagnetic Spin Correlations Revealed by NMR
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
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