A ternary compound with α-ThSi₂-type structure in the system Dy–Ge–Si

Chem. Met. Alloys 13 (2020) 61-64

https://doi.org/10.30970/cma13.0406

Zinoviya SHPYRKA, Oksana PURAVETS, Roman GLADYSHEVSKII

A new ternary compound DyGeSi_0.75 was found in the system Dy–Ge–Si. The crystal structure of the compound was determined by X-ray powder diffraction (Fe Kα radiation). The refined composition was DyGe_{1.02(2)Si0.73(2)} and the structure type α-ThSi₂, space group I4₁/amd, Pearson symbol tI12, a = 4.052(3), c = 13.6207(10) Å, V = 221.78(3) ų, R_B = 0.1011.

Stacking of trigonal prisms in the structure of the compound DyGeSi_0.75.

Keywords

Rare earth / Germanium / Silicon / X-ray powder diffraction / Crystal structure