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Structural phase transitions evidenced by Mössbauer spectrometry in a ferric fluorophosphate: Na3Fe2(PO4)2F3

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Abstract

57Fe Mössbauer spectrometry was carefully applied to Na3Fe2(PO4)2F3, a fluorophosphate crystalline ferric compound. Two structural phase transitions involving very slight motions of Na+ cations were evidenced from the temperature dependence of the quadrupolar splitting, in agreement with those observed in isotypic compounds, either by diffraction technique or by calorimetric measurement. Consequently, it is important to emphasise the extremely high neighbouring sensitivity of 57Fe Mössbauer spectrometry.

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References

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Authors and Affiliations

  1. Laboratoire des Fluorures, UPRESA CNRS 6010, France

    J.M. Le Meins, G. Courbion & J.‐M. Grenèche

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  1. J.M. Le Meins
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  2. G. Courbion
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  3. J.‐M. Grenèche
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Le Meins, J., Courbion, G. & Grenèche, J. Structural phase transitions evidenced by Mössbauer spectrometry in a ferric fluorophosphate: Na3Fe2(PO4)2F3 . Hyperfine Interactions 122, 365–369 (1999). https://doi.org/10.1023/A:1012626629668

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  • DOI: https://doi.org/10.1023/A:1012626629668

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