We have measured high-energy resolution Fe 2p and O 1s photoemission spectra and high-angular resolution Fe 2p and O 1s photoelectron diffraction angular distribution for the following iron oxide films grown by molecular beam epitaxy: α-Fe2O3/α-Al2O3(0001), γ-Fe2O3/MgO(001), and Fe3O4/MgO(001). The combination of these two techniques allows the crystallinographic quality of the near-surface region to be determined for each phase prior to measurement and interpretation of the core-level spectra. These spectra thus constitute state-of-the-art energy-resolved data on phase-pure, crystallographically well-defined iron oxides.
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