Electron doping evolution of the neutron spin resonance in NaFe1−xCoxAs

Simple item page
dc.citation.articleNumber174522en_US
dc.citation.issueNumber17en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber93en_US
dc.contributor.authorZhang, Chenglinen_US
dc.contributor.authorLv, Weichengen_US
dc.contributor.authorTan, Guotaien_US
dc.contributor.authorSong, Yuen_US
dc.contributor.authorCarr, Scott V.en_US
dc.contributor.authorChi, Songxueen_US
dc.contributor.authorMatsuda, M.en_US
dc.contributor.authorChristianson, A.D.en_US
dc.contributor.authorFernandez-Baca, J.A.en_US
dc.contributor.authorHarriger, L.W.en_US
dc.contributor.authorDai, Pengchengen_US
dc.date.accessioned2017-05-04T19:43:54Zen_US
dc.date.available2017-05-04T19:43:54Zen_US
dc.date.issued2016en_US
dc.description.abstractNeutron spin resonance, a collective magnetic excitation coupled to superconductivity, is one of the most prominent features shared by a broad family of unconventional superconductors including copper oxides, iron pnictides, and heavy fermions. In this paper, we study the doping evolution of the resonances in NaFe1−xCoxAs covering the entire superconducting dome. For the underdoped compositions, two resonance modes coexist. As doping increases, the low-energy resonance gradually loses its spectral weight to the high-energy one but remains at the same energy. By contrast, in the overdoped regime we only find one single resonance, which acquires a broader width in both energy and momentum but retains approximately the same peak position even when Tc drops by nearly a half compared to optimal doping. These results suggest that the energy of the resonance in electron overdoped NaFe1−xCoxAs is neither simply proportional to Tc nor the superconducting gap but is controlled by the multiorbital character of the system and doped impurity scattering effect.en_US
dc.identifier.citationZhang, Chenglin, Lv, Weicheng, Tan, Guotai, et al.. "Electron doping evolution of the neutron spin resonance in NaFe1−xCoxAs." <i>Physical Review B,</i> 93, no. 17 (2016) American Physical Society: https://doi.org/10.1103/PhysRevB.93.174522.en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.93.174522en_US
dc.identifier.urihttps://hdl.handle.net/1911/94181en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
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.en_US
dc.titleElectron doping evolution of the neutron spin resonance in NaFe1−xCoxAsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
PhysRevB.93.174522.pdf
Size:
738.74 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Faculty Publications
Chemistry Publications
Physics and Astronomy Publications