Abstract
Bi0.815Y0.085La0.10FeO3 perovskite is studied by 57Fe Mossbauer spectroscopy at 87, 295, and 670 K. The measured temperature of the magnetic phase transition (the Neel temperature) is T N = 666 ± 5 K. It is found that substituting Y3+ ions for 0.085 at % Bi3+ in the Bi0.9La0.1FeO3 perovskite destroys the spatially spin-modulated structure while the rhombohedral crystal structure is retained. Two structurally nonequivalent states of iron ions are found above the Neel temperature. Below the Neel temperature, there are four magnetically nonequivalent states of trivalent iron ions.
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Schedule a callMore From: Bulletin of The Russian Academy of Sciences: Physics
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