Abstract
The results of the Mossbauer studies on 57Fe nuclei in multiferroics BiFe1–x T x O3 (T = Sc, Mn; x = 0, 0.05) in the temperature range of 5.2–300 K have been presented. The Mossbauer spectra have been analyzed in terms of the model of an incommensurate spatial spin-modulated structure of cycloid type. Information has been obtained about the effect of the substitution of Sc and Mn atoms for Fe atoms on the hyperfine parameters of the spectrum: the shift and the quadrupole shift of the Mossbauer line, the isotropic and anisotropic contributions to the hyperfine magnetic field, and also the parameter of anharmonicity of the spatial spin-modulated structure.
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