Mössbauer effect study of monoclinic Fe2TiO5 |
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Authors: | D. Hanžel M. Drofenik V. Kraševec A. Prodan F. Sevšek |
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Affiliation: | J. Stefan Institute, E. Kardelj University of Ljubljana, Ljubljana, Yugoslavia |
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Abstract: | The spectra of 57Fe in monoclinic Fe2TiO5 were interpreted as hyperfine patterns belonging to two nonidentical iron sites. They confirm that Fe3+ ions are distributed over 4a and 8f sites. The spectra of mosaic-like crystals indicate that all iron spins lie in the (100) plane. The temperature dependences of hf parameters gave a magnetic ordering temperature 350 K, average saturation effective field 505 kG and Debye temperature 430 K. Above 1500 K, monoclinic Fe2TiO5 transformed into the stable pseudobrookite form. |
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