57Fe-and 119Sn-Mossbauer Studies of Tin-Doped Chromium Iron Oxides of Composition Cr2-xFexO3

Berry, Frank; Helgason, O; Moyo, T and Ren, Xiaolin (2005). 57Fe-and 119Sn-Mossbauer Studies of Tin-Doped Chromium Iron Oxides of Composition Cr2-xFexO3. In: Gracia, Mercedes; Plazaola, Fernando and Marco, José F eds. Industrial Applications of the Mossbauer Effect: International Conference on the Industrial Applications of the Mössbauer Effect. USA: American Institute of Physics, pp. 206–210.

URL: http://proceedings.aip.org/proceedings/confproceed...

Abstract

Tin-doped iron chromium oxides of composition Cr2-xFexO3 prepared by the calcination of precipitates adopt the corundum-related structure.57Fe Mossbauer spectroscopy shows the materials to be composed of small superparamagnetic particles and no evidence of a Morin transition was observed above 80K.The supertransferred hyperfine magnetic field at the tin site is shown by 119Sn Mossbauer spectroscopy to be less than that experienced in tin-doped Fe2O3

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