A Mott insulator continuously connected to iron pnictide superconductors

Simple item page
dc.citation.articleNumber13879en_US
dc.citation.journalTitleNature Communicationsen_US
dc.citation.volumeNumber7en_US
dc.contributor.authorSong, Yuen_US
dc.contributor.authorYamani, Zahraen_US
dc.contributor.authorCao, Chongdeen_US
dc.contributor.authorLi, Yuen_US
dc.contributor.authorZhang, Chenglinen_US
dc.contributor.authorChen, Justin S.en_US
dc.contributor.authorHuang, Qingzhenen_US
dc.contributor.authorWu, Huien_US
dc.contributor.authorTao, Jingen_US
dc.contributor.authorZhu, Yimeien_US
dc.contributor.authorTian, Weien_US
dc.contributor.authorChi, Songxueen_US
dc.contributor.authorCao, Huiboen_US
dc.contributor.authorHuang, Yao-Boen_US
dc.contributor.authorDantz, Marcusen_US
dc.contributor.authorSchmitt, Thorstenen_US
dc.contributor.authorYu, Rongen_US
dc.contributor.authorNevidomskyy, Andriy H.en_US
dc.contributor.authorMorosan, Emiliaen_US
dc.contributor.authorSi, Qimiaoen_US
dc.contributor.authorDai, Pengchengen_US
dc.contributor.orgRice Center for Quantum Materialsen_US
dc.date.accessioned2017-01-09T18:24:39Zen_US
dc.date.available2017-01-09T18:24:39Zen_US
dc.date.issued2016en_US
dc.descriptionNEWS COVERAGE: A news release based on this journal publication is available online: http://news.rice.edu/2016/12/19/copper-stripes-help-iron-pnictide-lock-in-insulating-state/en_US
dc.description.abstractIron-based superconductivity develops near an antiferromagnetic order and out of a bad-metal normal state, which has been interpreted as originating from a proximate Mott transition. Whether an actual Mott insulator can be realized in the phase diagram of the iron pnictides remains an open question. Here we use transport, transmission electron microscopy, X-ray absorption spectroscopy, resonant inelastic X-ray scattering and neutron scattering to demonstrate that NaFe1−xCuxAs near x≈0.5 exhibits real space Fe and Cu ordering, and are antiferromagnetic insulators with the insulating behaviour persisting above the Néel temperature, indicative of a Mott insulator. On decreasing x from 0.5, the antiferromagnetic-ordered moment continuously decreases, yielding to superconductivity ∼x=0.05. Our discovery of a Mott-insulating state in NaFe1−xCuxAs thus makes it the only known Fe-based material, in which superconductivity can be smoothly connected to the Mott-insulating state, highlighting the important role of electron correlations in the high-Tc superconductivity.en_US
dc.identifier.citationSong, Yu, Yamani, Zahra, Cao, Chongde, et al.. "A Mott insulator continuously connected to iron pnictide superconductors." <i>Nature Communications,</i> 7, (2016) Springer Nature: http://dx.doi.org/10.1038/ncomms13879.en_US
dc.identifier.doihttp://dx.doi.org/10.1038/ncomms13879en_US
dc.identifier.urihttps://hdl.handle.net/1911/93742en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleA Mott insulator continuously connected to iron pnictide superconductorsen_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:
ncomms13879.pdf
Size:
1.52 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Faculty Publications
Physics and Astronomy Publications