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Synthesis and properties of barium ferrigermanate Ba2Fe2GeO7

  • Magnetism and Ferroelectricity
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Abstract

The magnetic susceptibility and specific heat of single crystals of the Ba2Fe2GeO7 barium ferrigermanate are investigated. It is revealed that the temperature dependence of the magnetic susceptibility exhibits a kink at a temperature T = 8.5 K. The number of nonequivalent positions of Fe3+ ions and their occupancies are determined using Mössbauer spectroscopy. It is shown that the Fe3+ ions located in tetrahedral positions T2 are ordered incompletely, which is inconsistent with the results obtained previously. An assumption is made regarding the possible ground magnetic state of the Ba2Fe2GeO7 compound.

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Authors and Affiliations

  1. Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia

    G. A. Petrakovskii, L. N. Bezmaternykh, I. A. Gudim, O. A. Bayukov, A. M. Vorotynov, D. A. Velikanov & A. F. Bovina

  2. Paul Scherrer Institute, Villigen PSI, 5232, Switzerland

    D. Sheptyakov

Authors
  1. G. A. Petrakovskii
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  2. L. N. Bezmaternykh
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  3. I. A. Gudim
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  4. D. Sheptyakov
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  5. O. A. Bayukov
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  6. A. M. Vorotynov
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  7. D. A. Velikanov
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  8. A. F. Bovina
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__________

Translated from Fizika Tverdogo Tela, Vol. 47, No. 11, 2005, pp. 2027–2031.

Original Russian Text Copyright © 2005 by Petrakovski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Bezmaternykh, Gudim, Sheptyakov, Bayukov, Vorotynov, Velikanov, Bovina.

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Petrakovskii, G.A., Bezmaternykh, L.N., Gudim, I.A. et al. Synthesis and properties of barium ferrigermanate Ba2Fe2GeO7 . Phys. Solid State 47, 2114–2118 (2005). https://doi.org/10.1134/1.2131154

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  • DOI: https://doi.org/10.1134/1.2131154

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