Valence Band Structure and X-ray Spectra of Oxygen-Deficient Ferrites SrFeOx
| Autor(en): | Galakhov, V. R. Kurmaev, E. Z. Kuepper, K. Neumann, M. McLeod, J. A. Moewes, A. Leonidov, I. A. Kozhevnikov, V. L. |
Stichwörter: | CHEMICAL-POTENTIAL SHIFT; Chemistry; Chemistry, Physical; CRYSTAL; ELECTRONIC-STRUCTURE; FEATURES; GENERALIZED GRADIENT APPROXIMATION; LA1-XSRXFEO3; MAGNETIC-PROPERTIES; Materials Science; Materials Science, Multidisciplinary; Nanoscience & Nanotechnology; PHASE; Science & Technology - Other Topics; SYSTEM | Erscheinungsdatum: | 2010 | Herausgeber: | AMER CHEMICAL SOC | Journal: | JOURNAL OF PHYSICAL CHEMISTRY C | Volumen: | 114 | Ausgabe: | 11 | Startseite: | 5154 | Seitenende: | 5159 | Zusammenfassung: | We present a study of the electronic structure of oxygen-deficient ferrites SrFeOx (x = 2.46, 2.52. 2.68, and 2.82) by means of X-ray photoelectron, X-ray emission, and X-ray absorption spectroscopies. Front the Fe 3s photoelectron splitting, the magnetic moments are estimated. It is found that the doped holes are localized in both Fe 3d and O 2p states. The valence band structure is analyzed. It is shown that the band gap decreases with the increase of oxygen concentration. |
ISSN: | 19327447 | DOI: | 10.1021/jp909091s |
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geprüft am 06.05.2024
