Fig. 2: Symmetry dependence of the Raman spectra.
From: Lattice-shifted nematic quantum critical point in FeSe1−xSx

a Low energy part (on a linear scale) of the Raman spectra for two different symmetry channels B1g (full lines) and A1g + B2g (dotted lines) and for x = 0.07, x = 0.14, x = 0.22, and x = 0.27. b symmetry channel dependence of the spectra over a wide energy range on a linear scale for x = 0, x = 0.07, and x = 0.27.