Crystal structures of the R1.33 Ni3 Ga8 (R = Tb, Ho, Er, Tm, Lu) compounds

被引：0

作者：

Muts, Nataliya ^{[1
]}

Tokaychuk, Yaroslav ^{[1
]}

Gladyshevskii, Roman ^{[1
]}

机构：

[1] Ivan Franko Natl Univ Lviv, Dept Inorgan Chem, Kyryla i Mefodiya St 6, UA-79005 Lvov, Ukraine

来源：

SOLID STATE SCIENCES | 2024年 / 158卷

关键词：

X-ray powder diffraction; Energy-dispersive X-ray spectroscopy; Crystal structure; Homologous structure series; Gd 1.33 Pt 3 Al 8 structure type; GD; DY;

D O I：

10.1016/j.solidstatesciences.2024.107737

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The existence of five new ternary compounds with Gd1.33Pt3Al8-type structure (Pearson symbol hR 51, space group R- 3 m ) was established by means of X-ray powder diffraction and energy-dispersive X-ray spectroscopy: Tb1.33Ni3Ga8 (& acy; = 4.2056(1), & scy; = 37.8913(9) & Aring;), Ho1.33Ni3Ga8 (& acy; = 4.19666(9), & scy; = 37.7882(9) & Aring;), Er1.33Ni3Ga8 (a = 4.19290(8), c = 37.7446(8) & Aring;), Tm1.33Ni3Ga8 (a = 4.18819(7), c = 37.6980(7) & Aring;), and Lu1.33Ni3Ga8 (a = 4.1826(1), c = 37.647(1) & Aring;). The structures of the ternary R 1.33 Ni 3 Ga 8 compounds belong to a family of linearintergrowth structures with the general formula R 0.67 T n M 2 n + m and are built from atom layers of the composition R 0.67 Ga ( R 0.67 M ), separated by single or double NiGa2 slabs (TM2). The layers containing the rare-earth metal atoms are characterized by a disordered distribution of rare-earth metal atoms and Ga-atom triangles.

引用

页数：8

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