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Specific features of the crystal structure and magnetic properties of the DyFeTi2O7 compound |
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| Authors: | T. V. Drokina G. A. Petrakovskii M. S. Molokeev D. A. Velikanov O. N. Pletnev O. A. Bayukov |
| Affiliation: | 1. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50-38, Krasnoyarsk, 660036, Russia 2. Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk, 660041, Russia |
| Abstract: | Results of studying the specific features of formation of the crystal structure and distribution of iron cations over the sites in the DyFeTi2O7 compound have been presented and the comparison with the GdGaTi2O7 isostructural compound has been performed. The atomic disorder in the distribution of the Fe3+ ions over structural sites in the DyFeTi2O7 compound is confirmed by the Mössbauer spectroscopy and X-ray diffractometry. The results of magnetic measurements in the low-temperature region have revealed an inflection point in the temperature dependence of the magnetic moment and its dependence on the magnetic prehistory of the sample. The obtained experimental data suggest that there is a spin glass state with freezing point T f = 6 K in the DyFeTi2O7 compound. |
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