Synthesis and Characterization of Structural, Thermodynamic, and Magnetic Properties of NaxLi1 – xFeGe2O6 (x = 0.1–0.9) Compounds
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https://elib.sfu-kras.ru/handle/2311/33238Дата:
2016-07Журнал:
Physics of the Solid StateКвартиль журнала в Scopus:
Q3Квартиль журнала в Web of Science:
Q4Библиографическое описание:
Drokina, T. V. Synthesis and Characterization of Structural, Thermodynamic, and Magnetic Properties of NaxLi1 – xFeGe2O6 (x = 0.1–0.9) Compounds [Текст] / T. V. Drokina, G. A. Petrakovskii, M. S. Molokeev, V. S. Bondarev, D. A. Velikanov // Physics of the Solid State. — 2016. — Т. 58 (№ 7). — С. 1361-1370Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
Аннотация:
The properties of NaxLi1 – xFeGe2O6 (x = 0.1–0.9) solid solutions obtained via a solid-phase syn-
thesis are measured by X-ray diffraction, calorimetry, and magnetic method. The order–disorder transfor-
mations in low-dimensional NaxLi1 – xFeGe2O6 (x = 0.1–0.9) spin systems with predominately antiferromag-
netic exchange interaction have been revealed in the low-temperature susceptibility dependences. The study
of heat and physical properties confirm that substituting the sodium ions with the lithium ones induces the
first-order structural phase transitions of the displacement type which are characterized by a symmetry
change in monoclinic crystals from high-temperature C2/c space group to low-temperature P21/c space
group.