Figure 5
3D plot of the evolution of the photoemission spectra of the Pt 4f line taken with 680 eV photons at 3 mbar of water vapour and 0°C under a photon beam flux that has been decreased by a factor of six compared with the data shown in Fig. 2(a). The time lapse from the first (front) to the last spectra is 49 min. The arrow indicates the temporal evolution. All spectra were acquired at the same sample position. |