Magnetically driven suppression of nematic order in an iron-based superconductor

S. Avci; O. Chmaissem; J. M. Allred; S. Rosenkranz; I. Eremin; A. V. Chubukov; D. E. Bugaris; D. Y. Chung; M. G. Kanatzidis; J. P. Castellan; J. A. Schlueter; H. Claus; D. D. Khalyavin; P. Manuel; A. Daoud-Aladine; R. Osborn

doi:10.1038/ncomms4845

Magnetically driven suppression of nematic order in an iron-based superconductor

S. Avci, O. Chmaissem, J. M. Allred, S. Rosenkranz, I. Eremin, A. V. Chubukov, D. E. Bugaris, D. Y. Chung, M. G. Kanatzidis, J. P. Castellan, J. A. Schlueter, H. Claus, D. D. Khalyavin, P. Manuel, A. Daoud-Aladine, R. Osborn^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

150 Scopus citations

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 Ba 1 ̂'x Na x Fe 2 As 2 close to the suppression of SDW order, which is consistent with the predictions of magnetically driven models of nematic order.

Original language	English (US)
Article number	3845
Journal	Nature communications
Volume	5
DOIs	https://doi.org/10.1038/ncomms4845
State	Published - May 22 2014

Funding

We are thankful to J. Knolle, R. Fernandes, J. Schmalian, R. Moessner and V. Stanev for useful discussions. This work was supported by the U.S. Department of Energy, Office of Science, Materials Sciences and Engineering Division (S.A., O.C., J.A., S.R., D.E.B., D.Y.C., M.G.K., J.-P.C., J.A.S., H.C., R.O.), which also supported A.V.C. under grant #DE-FG02-ER46900 (A.V.C.). I.E. acknowledges financial support from the DFG under priority programme SPP 1458 (ER 463/5) and the German Academic Exchange Service (DAAD PPP USA No. 57051534).

ASJC Scopus subject areas

General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy

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Avci, S., Chmaissem, O., Allred, J. M., Rosenkranz, S., Eremin, I., Chubukov, A. V., Bugaris, D. E., Chung, D. Y., Kanatzidis, M. G., Castellan, J. P., Schlueter, J. A., Claus, H., Khalyavin, D. D., Manuel, P., Daoud-Aladine, A., & Osborn, R. (2014). Magnetically driven suppression of nematic order in an iron-based superconductor. Nature communications, 5, Article 3845. https://doi.org/10.1038/ncomms4845

@article{72c932ec487f40a7addab9723a048b68,

title = "Magnetically driven suppression of nematic order in an iron-based superconductor",

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 Ba 1{\^ }'x Na x Fe 2 As 2 close to the suppression of SDW order, which is consistent with the predictions of magnetically driven models of nematic order.",

author = "S. Avci and O. Chmaissem and Allred, {J. M.} and S. Rosenkranz and I. Eremin and Chubukov, {A. V.} and Bugaris, {D. E.} and Chung, {D. Y.} and Kanatzidis, {M. G.} and Castellan, {J. P.} and Schlueter, {J. A.} and H. Claus and Khalyavin, {D. D.} and P. Manuel and A. Daoud-Aladine and R. Osborn",

note = "Funding Information: We are thankful to J. Knolle, R. Fernandes, J. Schmalian, R. Moessner and V. Stanev for useful discussions. This work was supported by the U.S. Department of Energy, Office of Science, Materials Sciences and Engineering Division (S.A., O.C., J.A., S.R., D.E.B., D.Y.C., M.G.K., J.-P.C., J.A.S., H.C., R.O.), which also supported A.V.C. under grant #DE-FG02-ER46900 (A.V.C.). I.E. acknowledges financial support from the DFG under priority programme SPP 1458 (ER 463/5) and the German Academic Exchange Service (DAAD PPP USA No. 57051534).",

year = "2014",

month = may,

day = "22",

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Avci, S, Chmaissem, O, Allred, JM, Rosenkranz, S, Eremin, I, Chubukov, AV, Bugaris, DE, Chung, DY, Kanatzidis, MG, Castellan, JP, Schlueter, JA, Claus, H, Khalyavin, DD, Manuel, P, Daoud-Aladine, A & Osborn, R 2014, 'Magnetically driven suppression of nematic order in an iron-based superconductor', Nature communications, vol. 5, 3845. https://doi.org/10.1038/ncomms4845

TY - JOUR

T1 - Magnetically driven suppression of nematic order in an iron-based superconductor

AU - Avci, S.

AU - Chmaissem, O.

AU - Allred, J. M.

AU - Rosenkranz, S.

AU - Eremin, I.

AU - Chubukov, A. V.

AU - Bugaris, D. E.

AU - Chung, D. Y.

AU - Kanatzidis, M. G.

AU - Castellan, J. P.

AU - Schlueter, J. A.

AU - Claus, H.

AU - Khalyavin, D. D.

AU - Manuel, P.

AU - Daoud-Aladine, A.

AU - Osborn, R.

N1 - Funding Information: We are thankful to J. Knolle, R. Fernandes, J. Schmalian, R. Moessner and V. Stanev for useful discussions. This work was supported by the U.S. Department of Energy, Office of Science, Materials Sciences and Engineering Division (S.A., O.C., J.A., S.R., D.E.B., D.Y.C., M.G.K., J.-P.C., J.A.S., H.C., R.O.), which also supported A.V.C. under grant #DE-FG02-ER46900 (A.V.C.). I.E. acknowledges financial support from the DFG under priority programme SPP 1458 (ER 463/5) and the German Academic Exchange Service (DAAD PPP USA No. 57051534).

PY - 2014/5/22

Y1 - 2014/5/22

N2 - 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 Ba 1 ̂'x Na x Fe 2 As 2 close to the suppression of SDW order, which is consistent with the predictions of magnetically driven models of nematic order.

AB - 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 Ba 1 ̂'x Na x Fe 2 As 2 close to the suppression of SDW order, which is consistent with the predictions of magnetically driven models of nematic order.

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DO - 10.1038/ncomms4845

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JO - Nature communications

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ER -

Magnetically driven suppression of nematic order in an iron-based superconductor

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