FWHM for Peak-fits Monochromatic XPS using Pass Energy = 50 eV (this PE give Ag (3d5) FWHM = 0.75 eV) or PE = 25 eV (that gives Ag (3d5) FWHM = 0.64 eV) All values were obtained by peak-fitting pure chemical compounds, natural crystals, or man-made single crystal cleaved in air to expose fresh […]