[PDF][PDF] Raman scattering as a probe of charge nematic fluctuations in iron based superconductors
We report Raman scattering measurement of charge nematic fluctuations in the tetragonal
phase of BaFe2As2 and Sr (Fe1− x Co x) 2 As2 (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.
phase of BaFe2As2 and Sr (Fe1− x Co x) 2 As2 (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.
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