Tin-doped spinel-related oxides of composition M3O4 (M = Mn, Fe, Co) |
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| Authors: | Orn Helgason Frank J. Berry Thomas Moyo Xiaolin Ren |
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| Affiliation: | (1) Science Institute, University of Iceland, Dunhagi 3, Reykjavik, IS-107, Iceland;(2) Department of Chemistry, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK;(3) School of Pure and Applied Physics, University of Kwa-Zulu Natal, Durban, 4041, South Africa |
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| Abstract: | Tin-doped compounds of spinel-related M3O4 (M = Fe, Mn, Co) have been studied by 119Sn and 57Fe Mössbauer spectroscopy in the temperature range of 20–600 K. The 119Sn Mössbauer spectra recorded down to 20 K from the non-iron-containing compounds of Co3O4 and Mn3O4 contained only doublets showing no transfer of magnetic properties from cobalt or manganese to the dopant tin ions. In contrast, the tin-doped-(FeCo)3O4 and (FeMn)3O4 gave 119Sn and 57Fe Mössbauer spectra, which showed magnetic hyperfine interactions. The Curie temperature has been estimated for the former sample. |
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| Keywords: | M?ssbauer spectroscopy tin-doped spinel-related oxides Curie temperature |
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