Competing Magnetic Fluctuations in Iron Pnictide Superconductors: Role of Ferromagnetic Spin Correlations Revealed by NMR Wiecki, P. Roy, B. Johnston, David Bud’ko, Sergey Canfield, Paul Furukawa, Yuji
dc.contributor.department Ames National Laboratory
dc.contributor.department Physics and Astronomy 2020-03-05T16:21:54.000 2020-06-30T06:20:53Z 2020-06-30T06:20:53Z Thu Jan 01 00:00:00 UTC 2015 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="" target="_blank">10.1103/PhysRevLett.115.137001</a>. Posted with permission.</p>
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dc.identifier.articleid 1585
dc.identifier.contextkey 16716143
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath physastro_pubs/592
dc.language.iso en
dc.source.bitstream archive/|||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
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