Figure 4: Schematic phase diagram of FeSe.
From: Enhanced superconductivity accompanying a Lifshitz transition in electron-doped FeSe monolayer
The phase diagram illustrates the evolution of superconductivity and the FS topology. The data at x=0.11 is from our previous study24. The Tc data of bulk FeSe, as traced with a cyan curve, is adapted from refs 13, 15. The error bars of the superconducting gap include s.d. of the fitting. The error bars of Tc include the measurement uncertainties. We caution that the dashed line is a possible extrapolation result that do not take into account the possible instability of the material for dopings higher than x=0.214.
