Quantum critical fluctuations in an Fe-based superconductor

dc.bibliographicCitation.firstPage201
dc.bibliographicCitation.journalTitleCommunications Physicseng
dc.bibliographicCitation.volume5
dc.contributor.authorJost, Daniel
dc.contributor.authorPeis, Leander
dc.contributor.authorHe, Ge
dc.contributor.authorBaum, Andreas
dc.contributor.authorGeprägs, Stephan
dc.contributor.authorPalmstrom, Johanna C.
dc.contributor.authorIkeda, Matthias S.
dc.contributor.authorFisher, Ian R.
dc.contributor.authorWolf, Thomas
dc.contributor.authorLederer, Samuel
dc.contributor.authorKivelson, Steven A.
dc.contributor.authorHackl, Rudi
dc.date.accessioned2022-10-27T08:22:25Z
dc.date.available2022-10-27T08:22:25Z
dc.date.issued2022
dc.description.abstractQuantum critical fluctuations may prove to play an instrumental role in the formation of unconventional superconductivity. Here, we show that the characteristic scaling of a marginal Fermi liquid is present in inelastic light scattering data of an Fe-based superconductor tuned through a quantum critical point (QCP) by chemical substitution or doping. From the doping dependence of the imaginary time dynamics we are able to distinguish regions dominated by quantum critical behavior from those having classical critical responses. This dichotomy reveals a connection between the marginal Fermi liquid behavior and quantum criticality. In particular, the overlap between regions of high superconducting transition temperatures and quantum critical scaling suggests a contribution from quantum fluctuations to the formation of superconductivity.eng
dc.description.versionpublishedVersion
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/10346
dc.identifier.urihttp://dx.doi.org/10.34657/9382
dc.language.isoeng
dc.publisherLondon : Springer Nature
dc.relation.doihttps://doi.org/10.1038/s42005-022-00981-5
dc.relation.essn2399-3650
dc.rights.licenseCC BY 4.0 Unported
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc530
dc.subject.otherFermi liquidseng
dc.subject.otherFermionseng
dc.subject.otherIron compoundseng
dc.subject.otherIron-based Superconductorseng
dc.subject.otherLight scatteringeng
dc.titleQuantum critical fluctuations in an Fe-based superconductoreng
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccess
wgl.contributorIFWD
wgl.subjectPhysikger
wgl.typeZeitschriftenartikelger
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