Fig. 3: Two component analysis of the nematic fluctuation spectrum.
From: Lattice-shifted nematic quantum critical point in FeSe1−xSx
a Decomposition of the B1g Raman response illustrated at three different compositions: x = 0, x = 0.14, and x = 0.27 (see equation in the main text). The QEP peak component is highlighted via shading. b Temperature dependence of the two main contributions (QEP and HE) to the static nematic susceptibility χ0. Standard errors of the fits are shown but are usually smaller than the symbols.
