Unusual suppression of a spin resonance mode by magnetic field in underdoped NaFe1−xCoxAs: Evidence for orbital-selective pairing

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dc.citation.articleNumber064507
dc.citation.issueNumber6
dc.citation.journalTitlePhysical Review B
dc.citation.volumeNumber98
dc.contributor.authorSong, Yu
dc.contributor.authorTan, Guotai
dc.contributor.authorZhang, Chenglin
dc.contributor.authorToft-Petersen, Rasmus
dc.contributor.authorYu, Rong
dc.contributor.authorDai, Pengcheng
dc.date.accessioned2018-11-09T14:59:58Z
dc.date.available2018-11-09T14:59:58Z
dc.date.issued2018
dc.description.abstractWe use inelastic neutron scattering to study the fate of the two spin resonance modes in underdoped superconducting NaFe1−xCoxAs(x=0.0175) under applied magnetic fields. While an in-plane magnetic field of B=12 T only modestly suppresses superconductivity and enhances static antiferromagnetic order, the two spin resonance modes display disparate responses. The spin resonance mode at higher energy is mildly suppressed, consistent with the field effect in other unconventional superconductors. The spin resonance mode at lower energy, on the other hand, is almost completely suppressed. Such dramatically different responses to applied magnetic field indicate distinct origins of the two spin resonance modes, resulting from the strongly orbital-selective nature of spin excitations and Cooper pairing in iron-based superconductors.
dc.identifier.citationSong, Yu, Tan, Guotai, Zhang, Chenglin, et al.. "Unusual suppression of a spin resonance mode by magnetic field in underdoped NaFe1−xCoxAs: Evidence for orbital-selective pairing." <i>Physical Review B,</i> 98, no. 6 (2018) American Physical Society: https://doi.org/10.1103/PhysRevB.98.064507.
dc.identifier.digitalPhysRevB.98.064507
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.98.064507
dc.identifier.urihttps://hdl.handle.net/1911/103296
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.rightsArticle 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.titleUnusual suppression of a spin resonance mode by magnetic field in underdoped NaFe1−xCoxAs: Evidence for orbital-selective pairing
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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