Fig. 4: Curie–Weiss analysis of the critical nematic susceptibility.
From: Lattice-shifted nematic quantum critical point in FeSe1−xSx
a Curie–Weiss analysis of the critical inverse nematic susceptibility component \({\chi }_{0}^{{\rm{QEP}}}\). Note that only data above Ts are shown for low x compositions. b Phase diagram x − T of FeSe1−xSx showing the evolution of the Curie–Weiss nematic transition temperature T0 extracted from the analysis in (a) (full square). The error bars for T0 correspond to standard errors of the Curie–Weiss fits. Also shown in open squares are the T0 values extracted from a Curie–Weiss analysis of the χ0 extracted without any fitting by performing a Kramers–Kronig integration of the raw data restricted to energies below 400 cm−1 (see Supplementary Fig. 6). The lines are linear fits of T0 (x) values.
