Superconductivity induced gain of exchange energy in optimum Co-doped BaFe2As2
We propose to study the change in exchange energy – or equivalently the change in fluctuating momen – for an optimum electron doped Fe-based superconductor, Ba(Fe0.94Co0.06)2As2. So far rough estimates were obtained for hole doped Fe-based superconductors, but a precise determination should take the anisotropies, the L-dispersion and the change in Q widths into account. Ba(Fe0.94Co0.06)2As2 is best studied due its high Tc, good knowledge from previous experiments and due to the availability of a large crystal.
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M. Braden; BERTIN Alexandre; GORKOV Dmytro; HANSEN Ursula Bengaard; LEE Chul Ho and STEFFENS Paul. (2020). Superconductivity induced gain of exchange energy in optimum Co-doped BaFe2As2. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-576
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