Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.1021/acs.cgd.9b01387
Аннотация: Single crystals of solid solutions of HoFe3-xGax(BO3)4 with x = 0, 0.5, 1, 1.5, and 3 were obtained using flux synthesis. The conditions of the synthesis are described in detail. The structural properties of each of the synthesized samples were studied using X-ray powder diffraction analysis at several temperature points (303, 403, and 503 K). The structural parameters of the obtained samples and the "pure" compounds HoFe3(BO3)4 and HoGa3(BO3)4 were compared. The Raman spectra of the obtained solid solutions HoFe3-xGax(BO3)4 were studied in a wide temperature range (T = 10-400 K). The vibrational spectra and eigenvectors of the HoFe3Ga(BO3)4 and HoGa3(BO3)4 in R32 phase and HoFe3Ga(BO3)4 in P3121 phase were calculated within density functional theory. The features of the Raman spectra of HoFe2Ga(BO3)4, HoFe2.5Ga0.5(BO3)4, HoFe3(BO3)4 crystals associated with the R32 → P3121 structural phase transition, which have a strong dependence on the degree of substitution x, were investigated. Peculiarities of the Raman spectra, which are associated with magnetic ordering in HoFe1.5Ga1.5(BO3)4, HoFe2Ga(BO3)4, and HoFe2.5Ga0.5(BO3)4 crystals, were detected. © 2020 American Chemical Society.
Журнал: Crystal Growth and Design
Выпуск журнала: Vol. 20, Is. 2
Номера страниц: 1058-1069
ISSN журнала: 15287483
Издатель: American Chemical Society
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