Abstract
The parameters of hyperfine interactions in the Bi0.8La0.2FeO3 multiferroic have been measured by Mossbauer spectroscopy in the temperature range of 87–850 K. It has been found that the spatial spin-modulated structure that exists in BiFeO3 is destroyed in the substitution of La for 0.2 mol % of Bi and the homogeneous antiferromagnetic structure appears. The temperatures of the magnetic (Neel temperature, TN = 677 ± 3 K) and ferroelectric (Curie temperature, TC = 773 ± 3 K) transitions and the Debye temperature (Θ = 431 ± 12) have been measured.
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