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Crystal Structure of Sr0.4Ce0.4TiO3 Ceramics
Chemistry of Materials (2009)
  • Rick Ubic, Boise State University
Abstract

A 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.

Publication Date
September, 2009
Citation Information
Rick Ubic. "Crystal Structure of Sr0.4Ce0.4TiO3 Ceramics" Chemistry of Materials Vol. 21 Iss. 19 (2009)
Available at: http://works.bepress.com/rick_ubic/2/