Angle-resolved photoemission study of a thin FeO(111) layer formed on Fe(110)

S. Masuda, Y. Harada, H. Kato, K. Yagi, T. Komeda, T. Miyano, M. Onchi, Y. Sakisaka

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The electronic properties of a thin FeO(111) layer epitaxially grown on Fe(110) have been studied by angle-resolved photoemission spectroscopy using polarized synchrotron radiation. The normal-emission spectra show five features: Fe 3d derived states at 0.4 and 2.7 eV below the Fermi energy, O 2pderived states at 4.1 and 6.0 eV, and a multielectron satellite feature at 11.5 eV. The binding energies of these states were independent of h within 0.05 eV, in accord with the two- dimensionality of the layer. The band structure was mapped out in the two symmetry directions of the surface Brillouin zone: FeO[112] (M) and FeO[110] (K). The Fe 3d derived states show little dispersion (0.2 eV) with k?, while the O 2p derived states exhibit considerable dispersion of 23 eV in both directions. The dispersion of the O 2p derived bands can be understood in terms of a simple tight-binding model.

Original languageEnglish
Pages (from-to)8088-8095
Number of pages8
JournalPhysical Review B
Issue number14
Publication statusPublished - 1988
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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