Thin plasma grown films of GaAs oxides and GaAlAs oxides have been analyzed using the combined techniques of Rutherford backscattering, ion-induced X-rays, and nuclear resonance profiling. The stoichiometries of the films have been quantitatively determined and can be combined with other Auger profiling results to characterize the films. The ion-induced X-ray technique has been checked against other measurements to determine its accuracy. For uniform films such as these the X-ray measurements can provide accurate quantitative results.
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