Valence states of iron ions in nanostructured yttrium iron garnet Y3Fe5O12 studied by means of soft X-ray absorption spectroscopy

Autor(en): Mesilov, V. V.
Galakhov, V. R.
Gizhevskii, B. A.
Lobachevskaya, N. I.
Raekers, M.
Taubitz, C.
Cioroianu, A. R.
Neumann, M.
Stichwörter: BI; Crystal field multiplet calculations; FLUORESCENCE YIELD; High-pressure torsion; MAGNETIC-PROPERTIES; MAGNETOOPTICAL PROPERTIES; Nanostructured yttrium iron garnet; Spectroscopy; TRANSITION; X-ray absorption spectra
Erscheinungsdatum: 2012
Herausgeber: ELSEVIER SCIENCE BV
Journal: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
Volumen: 185
Ausgabe: 12
Startseite: 598
Seitenende: 601
Zusammenfassung: 
Nanostructured samples of yttrium iron garnet Y3Fe5O12 obtained by plastic deformation method (high-pressure torsion) were studied with help of soft X-ray absorption spectroscopy using Fe 2p and O 1s spectra. Experimental spectra were compared with crystal field multiplet calculations for Fe ions. Some amount of Fe2+ ions in nanostructured Y3Fe5O12 was found. The concentration of Fe2+ ions was found to be increased with the increase of the degree of plastic deformation. (C) 2013 Elsevier B.V. All rights reserved.
ISSN: 03682048
DOI: 10.1016/j.elspec.2013.01.010

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