Invited Paper SS+AS-TuA7
Electron Transfer Processes on Single Crsystalline Alkaline Earth Metal Oxide Films
Tuesday, November 8, 2016, 4:20 pm, Room 104E
Charge transfer processes are central ingredients to understand the chemical and physical properties of matter in general and on surfaces in particular. These processes may be classified into transient charge transfer states as created e.g. after photo excitation and processes, which create metastable charge transfer products such as molecular radicals. The Presentation will be restrict to the discussion of spontaneous charge transfer processes and will among other techniques discuss results obtained by electron paramagnetic resonance (EPR) spectroscopy to characterize paramagnetic species.
We will focus on results obtained on single crystalline, epitaxial MgO(001) film and show how film thickness, defects as well as dopants in the film are involved in charge transfer processes both between intrinsic species within the MgO as well as adsorbates such as molecular oxygen or metal atoms.