Fig. 7: Reconstructed critical temperature of the ferropnictide superconductor series \({\mathrm{LNFeAs}}{{\mathrm{O}}}_{1-x}{{\mathrm{F}}}_{x}\) where LN = La, Ce, Pr, Nd, Sm, Gd, presented as a function of \({\mathrm{LN}}\) electronegativity. | npj Computational Materials

Fig. 7: Reconstructed critical temperature of the ferropnictide superconductor series \({\mathrm{LNFeAs}}{{\mathrm{O}}}_{1-x}{{\mathrm{F}}}_{x}\) where LN = La, Ce, Pr, Nd, Sm, Gd, presented as a function of \({\mathrm{LN}}\) electronegativity.

From: Magnetic and superconducting phase diagrams and transition temperatures predicted using text mining and machine learning

Fig. 7

This series has been shown to exhibit the highest critical temperature of any non-cuprate compounds, with superconductivity over 50 K. We also present \({T}_{C}\) predictions for LN = Pm, Eu, Tb − Lu generated via random forest regression with K-best feature selection (K = 5). Error bars show the standard deviation between values of individual measurements mined for each composition where multiplicate data exist. Inset: crystal structure of a typical oxypnictide superconductor \({\mathrm{GdFeAs}}{{\mathrm{O}}}_{0.53}{{\mathrm{F}}}_{0.47}\) with atoms (colours): Gd (magenta), Fe (gold), As (green), O (red) and F (silver).

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