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Berry, Frank; Helgason, O; Moyo, T and Ren, Xiaolin
(2005).
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