Crystal Structure of Sr0.4Ce0.4TiO3 CeramicsChemistry of Materials
AbstractA cerium-doped SrTiO3 compound with the composition Sr0.4Ce0.4TiO3 has been produced by conventional solid-state processing. The structure of this compound was analyzed by X-ray, electron, and neutron diffraction. While no superlattice can be observed via X-ray diffraction, both electron and neutron diffraction show evidence of a noncubic supercell caused by antiphase tilting of oxygen octahedra. The most likely space group is C2/c, corresponding to an a-b-b- tilt system. Octahedra are tilted by ~5° about the pseudo-cubic a-axis and ~1.5° about the pseudo-cubic b- and c-axes.
Citation InformationRick Ubic, Ganesanpotti Subodh, Delphine Gout, Mailadil T. Sebastian, et al.. "Crystal Structure of Sr0.4Ce0.4TiO3 Ceramics" Chemistry of Materials (2009)
Available at: http://works.bepress.com/rick_ubic/91/