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Mössbauer spectra of Fe x O (x>0.95)

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Abstract

The Mössbauer spectra of five samples of Fe x O with compositions in the range 1.00>x>0.95 have been recorded at 298 K and 4.2 K. The spectrum of Fe x O at 298 K consists of an asymmetric doublet which was fitted to one Fe2+ singlet, two Fe2+ doublets and 1 Fe3+ singlet. The Mössbauer parameters vary consistently with the increasing density of defects as x decreases. The Mössbauer spectrum of Fe x O at 4.2 K consists of a large number of unresolved lines. The data were fitted to a series of singlets to enable the rough calculation of quantities relating to the mean Fe2+ and Fe3+ environments. The results of the fits to the 298 K spectra are briefly discussed in terms of a physical model for the defect structure of Fe x O.

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Author notes

  1. C. A. McCammon

    Present address: Dept. of Physics, University of Manitoba, R3T 2N2, Winnipeg, Manitoba, Canada

  2. D. C. Price

    Present address: Div. Applied Physics, CSIRO, P.O. Box 218, 2070, Lindfield, NSW, Australia

Authors and Affiliations

  1. Research School of Earth Sciences, Australian National University, 2601, Canberra, Australia

    C. A. McCammon

  2. Dept. of Solid State Physics, Research School of Physical Sciences, Australian National University, 2601, Canberra, Australia

    D. C. Price

Authors
  1. C. A. McCammon
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  2. D. C. Price
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McCammon, C.A., Price, D.C. Mössbauer spectra of Fe x O (x>0.95). Phys Chem Minerals 11, 250–254 (1985). https://doi.org/10.1007/BF00307402

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  • DOI: https://doi.org/10.1007/BF00307402

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