Figure 7
Preferential loss of oxygen (a) from the first 10 nm monitored by TOF-ERDA during grazing-incidence irradiation using 23 MeV I6+ ions. The stoichiometry of the surface remains the same (b) during TOF-ERDA measurement using the same ion beam but irradiated at 20° incidence angle. Red lines are linear fits to the data. |