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Evidence of a new structural phase of manganese-iron oxide

  • Relaxation Phase Transitions Lattice Dynamics
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Abstract

Coprecipitation of manganese and iron followed by calcination at temperatures below 500°C results in a new structural phase for the Mn−Fe−O system: a non-stoichiometric spinel with, in every three unit cells, one metal atom missing. About 57% of the iron in this spinel has the composition γMnFeO3 which is paramagnetic at room temperature. The remaining 43% of the iron has the composition MnyFe2-yO3 with y∼0.16 which is magnetic at room temperature.

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Authors and Affiliations

  1. Physics Department and Condensed Matter Physics Research Group, University of the Witwatersrand, Johannesburg, RSA

    B. Kolk, A. Albers, G. R. Hearne & H. Le Roux

Authors
  1. B. Kolk
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  2. A. Albers
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  3. G. R. Hearne
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  4. H. Le Roux
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Kolk, B., Albers, A., Hearne, G.R. et al. Evidence of a new structural phase of manganese-iron oxide. Hyperfine Interact 42, 1051–1054 (1988). https://doi.org/10.1007/BF02395571

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  • DOI: https://doi.org/10.1007/BF02395571

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