Inverse-photoemission measurement of iron oxides on polycrystalline Fe

Journal Article · Fri Jun 15 00:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.12227· OSTI ID:6739368

Kim, B; Hong, S; Lynch, D W ^[1]

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1. Department of Physics, Iowa State University, Ames, IA (USA) Ames Laboratory, Iowa State University, Ames, IA (USA)

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 3{ital d} states and O 2{ital p} states in the region of occupied states, and {ital s},{ital p}-like states of Fe in the unoccupied region. Isochromatic IPES showed two structures at {similar to}2.5 and {similar to}7.5 eV above the Fermi energy. We estimated from the IPES data a full band gap of 2.5 eV for FeO.

• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6739368
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:17; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
BAND THEORY
CHALCOGENIDES
CRYSTAL GROWTH
ELEMENTS
EMISSION
ENERGY DENSITY
FILMS
IRON
IRON COMPOUNDS
IRON OXIDES
METALS
OXIDES
OXYGEN COMPOUNDS
PHOTOEMISSION
SECONDARY EMISSION
SUBSTRATES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS