Synchrotron X-Ray Diffraction Study of BaPb1-xSnxO3 Solid Solution

The structures of BaPb1-xSnxO3 (x = 0, 0.025, 0.05 and 0.075) have been established from high resolution synchrotron X-ray powder diffraction. These solid solutions are all isostructural and the structures have been refined in the orthorombic space group, Imma. In all cases the BaO octahedral layers are separated by Pb/SnO6 layers. As expected on size arguments, the cell parameters decrease as the amounts of Sn increases due the size effects of the dopant cation.