Investigation of (Sr-δCaδ)PtO_6, using x-ray Rietveld refinement

摘要

The structures of the solid solution series (Sr_4-δCaδ)PtO_6, with δ=0, 0.85(1), 2, and 3, have been investigate using the Rietveld refinement technique with laboratory X-ray powder diffraction data. A complete solid solution between Sr and Ca was confirmed to exist. These compounds crystallize In the rhombohedral space group R3c. The cell parameters of the series range from a of 9.4780(3) To 9.7477(1) A, and C from 11.3301(4) to 11.8791(1) A for δfrom 3 to 0, respectively.