Crystal Structure of Sr0.4Ce0.4TiO3 Ceramics

Rick Ubic, Ganesanpotti Subodh, Delphine Gout, Mailadil T. Sebastian, Thomas Proffen

Research output: Contribution to journalArticlepeer-review

Abstract

A cerium-doped SrTiO 3 compound with the composition Sr 0.4 Ce 0.4 TiO 3 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 C 2/ 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.

Original languageAmerican English
JournalMaterials Science and Engineering Faculty Publications and Presentations
StatePublished - 1 Sep 2009

EGS Disciplines

  • Materials Science and Engineering

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