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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.

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CRYSTALLOGRAPHY
ISSN: 1600-5767
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