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Mössbauer and magnetic studies of orthorhombic FeSiO3

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Abstract

Magnetic properties of orthoferrosilite FeSiO3 have been examined using susceptibility, magnetization measurements and Mössbauer spectroscopy. From magnetic and Mössbauer measurements, one obtains close values of the magnetic ordering temperature, TN=39±1 K and TN=41±1 K, respectively. The magnetic order is characterized by strong ferromagnetic coupling of Fe2+ moments within the ribbons and a weak antiferromagnetic coupling of the moments between adjacent ribbons. The 4.2 K Mössbauer spectra can be fitted with two different hyperfine magnetic fields Hhf=68 kOe and Hhf=314 kOe which can be assigned to Fe2+ in the octahedrally coordinated M1 and M2 sites, respectively, of the FeSiO3 structure.

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Authors and Affiliations

  1. CEN-Grenoble, DRF/Service de Physique, 85 X - F38041, Grenoble Cédex, France

    J. R. Regnard, R. Guillen & A. Wiedenmann

  2. Laboratoire Louis Néel, CNRS, 166 X - F38042, Grenoble Cédex, France

    G. Fillion

  3. Institut für Mineralogie, Universität Marburg, 3550, Marburg, FRG

    S. Hafner

  4. Institut für Mineralogie und Kristallographie, Technische Universität Berlin, 1000, Berlin 12, FRG

    K. Langer

Authors
  1. J. R. Regnard
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  2. R. Guillen
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  3. A. Wiedenmann
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  4. G. Fillion
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  5. S. Hafner
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  6. K. Langer
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Regnard, J.R., Guillen, R., Wiedenmann, A. et al. Mössbauer and magnetic studies of orthorhombic FeSiO3 . Hyperfine Interact 28, 589–592 (1986). https://doi.org/10.1007/BF02061517

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  • DOI: https://doi.org/10.1007/BF02061517

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