Specific features of the crystal structure and magnetic properties of the DyFeTi2O7 compound

Results of studying the specific features of formation of the crystal structure and distribution of iron cations over the sites in the DyFeTi 2 O 7 compound have been presented and the comparison with the GdGaTi 2 O 7 isostructural compound has been performed. The atomic disorder in the distribution...

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Bibliographic Details
Published inPhysics of the solid state Vol. 55; no. 10; pp. 2037 - 2042
Main Authors Drokina, T. V., Petrakovskii, G. A., Molokeev, M. S., Velikanov, D. A., Pletnev, O. N., Bayukov, O. A.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.10.2013
Subjects
Magnetism
Physics
Physics and Astronomy
Solid State Physics
Spin Glass
Sample Cool
Pcnb
Quadrupole Splitting
Spin Glass State
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Summary:Results of studying the specific features of formation of the crystal structure and distribution of iron cations over the sites in the DyFeTi 2 O 7 compound have been presented and the comparison with the GdGaTi 2 O 7 isostructural compound has been performed. The atomic disorder in the distribution of the Fe 3+ ions over structural sites in the DyFeTi 2 O 7 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 DyFeTi 2 O 7 compound.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783413100107