The Ho–Ni–Ge system: Isothermal section and new rare-earth nickel germanides

Morozkin, A.V.; Knotko, A.V.; Yapaskurt, V.O.; Fang, Y.; Mozharivskyj, Y.; Pani, M.; Provino, A.; Manfrinetti, P.

Авторы: Morozkin A.V., Knotko A.V., Yapaskurt V.O., Fang Yuan, Mozharivskyj Y., Pani M., Provino A., Manfrinetti P.
Журнал: Journal of Solid State Chemistry
Том: 225
Год издания: 2015
Издательство: Elsevier B.V.
Местоположение издательства: Netherlands
Первая страница: 193
Последняя страница: 201
DOI: 10.1016/j.jssc.2014.12.025
Аннотация: The Ho-Ni-Ge system has been investigated at 1070 K and up to ~60 at. % Ho by X-ray diffraction and microprobe analyses. Besides the eight known compounds, HoNi5Ge3 (YNi5Si3-type), HoNi2Ge2 (CeAl2Ga2-type), Ho2NiGe6 (Ce2CuGe6-type), HoNiGe3 (SmNiGe3-type), HoNi0.2...0.6Ge2 (CeNiSi2-type), Ho37... 34Ni6...24Ge57...42 (AlB2-type), HoNiGe (TiNiSi-type), Ho3NiGe2 (La3NiGe2-type), the ternary system contains four new compounds: Ho3Ni11Ge4 (Sc3Ni11Ge4-type), HoNi3Ge2 (ErNi3Ge2-type), Ho3Ni2Ge3 (Hf3Ni2Si3-type) and ~Ho5Ni2Ge3 (unknown structure). Quasi-binary solid solutions were observed at 1070 K for Ho2Ni17, HoNi5, HoNi7, HoNi3, HoNi2, HoNi and Ho2Ge3, but no detectable solubility was found for the other binary compounds in the Ho-Ni-Ge system. Based on the magnetization measurements, the HoNi5Ge3, HoNi3Ge2 and Ho3Ni11Ge4 (and isostructural {Tb, Dy}3Ni11Ge4) compounds have been found to show paramagnetic behavior down to 5 K, whereas Ho3Ni2Ge3 exhibits an antiferromagnetic transition at ~7 K. Additionally, the crystal structure of the new isostructural phases {Y, Yb}Ni3Ge2 (ErNi3Ge2-type), Er3Ni11Ge4 (Sc3Ni11Ge4-type) and {Y, Tb, Dy, Er, Tm}3Ni2Ge3 (Hf3Ni2Si3-type) has been also investigated.
Добавил в систему: Морозкин Александр Владимирович

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