Inverse-photoemission measurement of iron oxides on polycrystalline Fe

15 June 1990

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 41 (17) , 12227-12229
https://doi.org/10.1103/physrevb.41.12227

Abstract

We measured the inverse-photoemission spectra (IPES) of iron oxides grown on an Fe substrate and calculated the band structure of paramagnetic FeO to analyze the IPES. The band-structure calculation showed some overlap between Fe 3d states and O 2p states in the region of occupied states, and s,p-like states of Fe in the unoccupied region. Isochromatic IPES showed two structures at ∼2.5 and ∼7.5 eV above the Fermi energy. We estimated from the IPES data a full band gap of 2.5 eV for FeO.

Keywords

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