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

Masuda, S.; Harada, Yoshiya; Kato, Hidemi; Yagi, Kazuichi; Komeda, Tadahiro; Miyano, T.; Onchi, M.; Sakisaka, Y.

doi:10.1103/physrevb.37.8088

Cited by 35 publications

(13 citation statements)

References 26 publications

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“…The experimental spectrum shows the three peak structure in the outer valence band region reported by earlier workers e.g. [ [26,44,45,46]. This three-peak structure is well explained by the cluster calculation.…”

Section: Valence Band Region Studiessupporting

confidence: 51%

Analytical utility of valence band X-ray photoelectron spectroscopy of iron and its oxides, with spectral interpretation by cluster and band structure calculations

2002

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The valence band and core-level X-ray photoelectron spectroscopy (XPS) of iron and its oxides are reported, and the valence band spectra interpreted by various calculation models. The paper focuses upon the valence band region, which shows significant differences between the metal and the following oxidized iron species: FeO, Fe(3)O(4), alpha-Fe(2)O(3), gamma-Fe(2)O(3), alpha-FeOOH and gamma-FeOOH. The core region is of little analytical value as a means of distinguishing between these species, but the valence band region shows significant differences. These differences are consistent with spectra predicted by cluster and band structure calculations. Cluster calculations are valuable as a means for interpreting the spectra of iron oxides with multiple iron sites and defect characteristics.

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Section: Valence Band Region Studiessupporting

confidence: 51%

Analytical utility of valence band X-ray photoelectron spectroscopy of iron and its oxides, with spectral interpretation by cluster and band structure calculations

2002

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“…Cv,36.40.Jn The interaction between iron and oxygen is one of the most important chemical processes in understanding corrosion, biological oxygen transport, and oxide film formation. Even though there have been extensive studies on the oxidation of single crystal iron surfaces [1][2][3] and elementary studies on the reaction between iron and oxygen [4,5], a complete understanding about the interaction of oxygen with iron and the iron oxide surfaces is still lacking. Well-controlled studies on small iron oxide clusters not only provide a new avenue to obtain detailed information about the interaction between oxygen and iron but also provide models for the iron oxide materials [6] and iron oxide surfaces [7,8].…”

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confidence: 99%

Sequential Oxygen Atom Chemisorption on Surfaces of Small Iron Clusters

1996

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We report photoelectron spectra of iron oxide clusters, Fe x O 2 y ͑x 1 4, y 1 6͒. For a given x, we find that the electron affinity increases with the number of O atoms, consistent with an increasing degree of oxidation. The results are interpreted based on charge transfer interactions between the Fe x clusters and the O atoms, and provide key information about the oxide cluster structures, in which each O atom is suggested to locate on the surface of the clusters for the x 3 and 4 series. These clusters provide novel model systems to understand the electronic structure of bulk iron oxides. [S0031-9007(96)

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“…Adjustment of the energy scale is made via the kinetic energy of the emitted electrons. The Co induced structure at the Fermi edge in the photoelectron spectrum (UPS) is still clearly present, whereas on iron substrates the creation of antiferromagnetic FeO has already started after such an exposure [15][16][17]. The structure around a binding energy of 6 eV corresponds to the oxygen overlayer, the one at 10 eV to a satellite structure induced by CoO.…”

Section: Resultsmentioning

confidence: 96%

Investigation of ferromagnetic surfaces with spin polarized metastable He(23 S) atoms

Getzlaff

Egert²,

Steidl³

et al. 1994

Z Phys D - Atoms, Molecules and Clusters

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Abstract. Electron spectra of tungsten (110) and of thin cobalt (0001) films, clean and after oxygen exposure, have been taken using metastable de-excitation spectroscopy (MDS). The spectra of remanently magnetized Co(000t), obtained with spin polarized MDS (SPMDS), show different intensities in the cobalt induced structure when reversing the polarization of the incident spin polarized He(2 3S) atomic beam. Due to the extreme surface sensitivity and the spin selectivity of the de-excitation process, this is evidence of differences in the spin resolved density of states of the outermost cobalt layer.

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

Cited by 35 publications

References 26 publications

Analytical utility of valence band X-ray photoelectron spectroscopy of iron and its oxides, with spectral interpretation by cluster and band structure calculations

Analytical utility of valence band X-ray photoelectron spectroscopy of iron and its oxides, with spectral interpretation by cluster and band structure calculations

Sequential Oxygen Atom Chemisorption on Surfaces of Small Iron Clusters

Investigation of ferromagnetic surfaces with spin polarized metastable He(23 S) atoms

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