NUKLEONIKA 2013, 58(1):53-56

 


HYPERFINE INTERACTIONS IN x Bi0.95Dy0.05FeO3-(1-x) Pb(Fe2/3W1/3)O3 MULTIFERROICS



Piotr Zachariasz1, Agata Stoch2, Paweł Stoch1,3, Jan Maurin1,4

1 National Centre for Nuclear Research, 7 Andrzeja Sołtana Str., 05-400 Otwock/Świerk, Poland
2 Institute of Electron Technology, Cracow Division, 39 Zabłocie Str., 30-701 Kraków, Poland
3 AGH University of Science and Technology, Faculty of Materials Science and Ceramics,
al. A. Mickiewicza 30, 30-059 Krakow, Poland
4 National Medicines Institute, 30/34 Chełmska, 00-725 Warsaw, Poland

The complex perovskite system x Bi0.95Dy0.05FeO3-(1 – x)·Pb(Fe2/3W1/3)O3 was synthesized by the solid-state reaction method and was studied by means of Mössbauer spectroscopy. For different Dy-doped bismuth ferrite (BDF) contents (x = 0.1, 0.3, 0.5, 0.7) the formation of single-phase sinters was confirmed using an X-ray diffraction technique. The random distributions of Fe/W cations in crystallographic structures have been proved. A monotonically, saturation-like increase of Néel temperatures with growing BDF contribution was confirmed, and a straightforward dependence between TN temperatures and the mean hyperfine magnetic fields at Fe nuclei was shown.

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