Fig. 3: Comparison of cation photoemission spectra.

Close-up of the hard x-ray photoemission spectra of the Ag-3d5/2 (a) (Sn-3d5/2) (b) in cleaved AgxSn1−xSe samples, normalized to their maximum intensities, together with the spectra from metallic Ag (Sn) from refs. 30, 31 shifted in binding energy to match the peak positions of AgxSn1−xSe in order to provide a comparison of the spectral lineshape.