Magnetic and valence states of iron ions in the Perovskite Bi0.9Sr0.1FeO3 |
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| Authors: | V. S. Pokatilov A. S. Sigov V. V. Pokatilov A. O. Konovalova |
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| Affiliation: | 1.Moscow State Institute of Radio Engineering, Electronics, and Automation (Technical University),Moscow,Russia |
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| Abstract: | Single-phase rhombohedral perovskites (Bi0.9Sr0.1)FeO3 were studied by Mössbauer spectroscopy at temperatures of 293, 87, and 680 K. The Neel temperature T N = 652 ± 2 K of the magnetic transition was measured. Three states of trivalent iron ions in the octahedral states were discovered. Substitution of Sr2+ for 0.1 mol % Bi3+ breaks the spatially spin-modulated structure. |
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