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Vanishing Superstructure: Crystal and Local Structures of Ni3 – xMTe2 (M = Sb, Sn)статья
- Авторы: Stroganova E.A., Kazakov S.M., Fabrichnii P.B., Afanasov M.I., Kuznetsov A.N.
- Журнал: Russian Journal of Inorganic Chemistry
- Том: 68
- Номер: 12
- Год издания: 2023
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1714
- Последняя страница: 1724
- DOI: 10.1134/s0036023623602246
- Аннотация: Series of compounds Ni3 – xMTe2 (M = Sb, Sn; x = 0–1) were obtained by high-temperature sealed-tube synthesis and characterized by X-ray powder diffraction and 121Sb and 119Sn Mössbauer spectroscopy.For Ni3–xSnTe2, it was shown that, as х varies from 1 to 0, nickel is distributed over three possible sites, two of which give a total occupancy of 1 and have ordered vacancies. Meanwhile, for Ni3–xSbTe2 and х other than ~0.9–1.0, the vacancy ordering disappears. The temperature dependence of the presence or absence of vacancy ordering was established for Ni2SbTe2; the ordering disappears on heating above 600°C and appears again on cooling.
- Добавил в систему: Кузнецов Алексей Николаевич