Magnetically Driven Suppression of Nematic Order in an Iron-Based Superconductor

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dc.contributor.author Avci, S.
dc.contributor.author Chmaissem, O.
dc.contributor.author Allred, J. M.
dc.contributor.author Rosenkranz, S.
dc.contributor.author Eremin, I.
dc.contributor.author Chubukov, A. V.
dc.contributor.author Bugaris, D. E.
dc.contributor.author Chung, D. Y.
dc.contributor.author Kanatzidis, M. G.
dc.contributor.author Castellan, J. -P
dc.contributor.author Schlueter, J. A.
dc.contributor.author Claus, H.
dc.contributor.author Khalyavin, D. D.
dc.contributor.author Manuel, P.
dc.contributor.author Daoud-Aladine, A.
dc.contributor.author Osborn, R.
dc.date.accessioned 2018-10-25T14:04:07Z
dc.date.available 2018-10-25T14:04:07Z
dc.date.issued 2014-05-22
dc.identifier.citation Avci, S., et al. (2013): Magnetically Driven Suppression of Nematic Order in an Iron-Based Superconductor. Nature Communications, 5. DOI: https://doi.org/10.1038/ncomms4845 en_US
dc.identifier.uri http://ir.ua.edu/handle/123456789/4098
dc.description.abstract A theory of superconductivity in the iron-based materials requires an understanding of the phase diagram of the normal state. In these compounds, superconductivity emerges when stripe spin density wave (SDW) order is suppressed by doping, pressure or atomic disorder. This magnetic order is often pre-empted by nematic order, whose origin is yet to be resolved. One scenario is that nematic order is driven by orbital ordering of the iron 3d electrons that triggers stripe SDW order. Another is that magnetic interactions produce a spin-nematic phase, which then induces orbital order. Here we report the observation by neutron powder diffraction of an additional fourfold-symmetric phase in Ba1−xNaxFe2As2 close to the suppression of SDW order, which is consistent with the predictions of magnetically driven models of nematic order. en_US
dc.format.mimetype application/pdf en_US
dc.subject Condensed Matter en_US
dc.subject Superconductivity en_US
dc.title Magnetically Driven Suppression of Nematic Order in an Iron-Based Superconductor en_US
dc.type text en_US


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