Powder diffraction data of SmBa 4 Cu 3 O 8.5+δ

Rietveld analysis of X-ray powder diffraction data was performed on SmBa{sub 4}Cu{sub 3}O{sub 8.5+{delta}}, which was synthesized from precursors Sm{sub 2}O{sub 3}, BaO{sub 2}, and CuO at 1000{degree}C in an oxygen atmosphere. SmBa{sub 4}Cu{sub 3}O{sub 8.5+{delta}} has a cubic perovskite-related structure that is isostructural with YBa{sub 4}Cu{sub 3}O{sub 8.5+{delta}}, and a doubled perovskite unit cell parameter of 8.17790{plus_minus}0.00004{Angstrom}. {copyright} {ital 1997 International Center for Diffraction Data.}