Raman scattering as a probe of charge nematic fluctuations in iron based superconductors

Y. -X. Yang; Y. Gallais; R. M Fernandes; I. Paul; L. Chauvière; M. -A. Méasson; M. Cazayous; A. Sacuto; D. Colson; A. Forget

doi:10.7566/JPSCP.3.015001

Raman scattering as a probe of charge nematic fluctuations in iron based superconductors

Superconductivity 2014-07-22 v2 Strongly Correlated Electrons

Authors: Y. -X. Yang , Y. Gallais , R. M Fernandes , I. Paul , L. Chauvière , M. -A. Méasson , M. Cazayous , A. Sacuto , D. Colson , A. Forget

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Abstract

We report Raman scattering measurement of charge nematic fluctuations in the tetragonal phase of BaFe $_2$ As $_2$ and Sr(Fe $_{1-x}$ Co $_x$ ) $_2$ As $_2$ (x=0.04) single crystals. In both systems, the observed nematic fluctuations are found to exhibit divergent Curie-Weiss like behavior with very similar characteristic temperature scales, indicating a universal tendency towards charge nematic order in 122 iron-based superconductors.

Keywords

raman scattering charge nematic fluctuations iron-based superconductors bafe2as2 sr(fe1-xcox)2as2 curie-weiss behavior tetragonal phase

Cite

@article{arxiv.1310.0934,
  title  = {Raman scattering as a probe of charge nematic fluctuations in iron based superconductors},
  author = {Y. -X. Yang and Y. Gallais and R. M Fernandes and I. Paul and L. Chauvière and M. -A. Méasson and M. Cazayous and A. Sacuto and D. Colson and A. Forget},
  journal= {arXiv preprint arXiv:1310.0934},
  year   = {2014}
}

Comments

6 pages, 3 figures, SCES2013 proceedings

Raman scattering as a probe of charge nematic fluctuations in iron based superconductors

Abstract

Keywords

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