1. The adsorbate system carbonmonoxide-Rhodium (001) was studied by photoemission (PES) and ion scattering spectroscopy (ISS).

2. It shows good Consistence between the calculated results with the measured ultraviolet photoemission spectroscopy (UPS) results.

3. Optical and photoemission measurements on Ag-Au and Cu-Au alloys over the whole composition range are reported.

4. Since then, photoemission has been explained as a process in which an electron is instantly ejected from an atom after the atom absorbs energy from a photon.