Valence states of iron ions in nanostructured yttrium iron garnet Y3FE5O12 studied by means of soft X-ray absorption spectroscopy
- Mesilov, V.V.
- Galakhov, V.R.
- Gizhevskii, B.A.
- Lobachevskaya, N.I.
- Raekers, M.
- Taubitz, C.
- Cioroianu, A.R.
- Neumann, M.
Publication date
January 2012
DOIAbstract
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 deformatio
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