X-ray powder diffraction data and structure refinement of CeFeGe_3

摘要

The crystal structure of the rare earth (RE) compound CeFeGe_3 has been studied by X-ray powder diffraction and refined by the Rietveld profile fitting method. The compound has the tetragonal BaNiSn_3-type structure, space group 14 mm(No. 107) a=4.3294(1)A, c=9.9444 (3) A, V =186.39 A~3, Z=2, and D_x=7.372 g·cm~-3. The figure of merit F_N for the powder data is F_30 =184.3(0.0037,44). The structure refinement was performed with 106 reflections and led to R_p =13.2 /100 and R_wp=18.2/100. Powder data are given.