Paper Title:
Doping Effect on Crystal Structure of Fast Oxide Ion Conductor LaGaO3-Based Perovskite Compounds
  Abstract

Doping effects of Sr and/or Mg on the crystal structures of LaGaO3 perovskites were investigated. The doping with Mg into Ga-site in LaGaO3 led to structural change from the orthorhombic primitive lattice (Pbnm) to the orthorhombic body-centered lattice (Ibmm) at room temperature. The orthorhombic cell (Ibmm) of LaGa0.9Mg0.1O2.95 changed to the monoclinic (I2/a) by doping with Sr into La site. Neutron powder diffraction analyses revealed that these compounds had GaO6 octahedral tilt. The GaO6 octahedral tilt angles were reduced with doping with Sr and/or Mg.

  Info
Periodical
Edited by
Keiichi Katayama, Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki
Pages
227-230
DOI
10.4028/www.scientific.net/KEM.320.227
Citation
M. Kajitani, M. Matsuda, A. Hoshikawa, T. Kamiyama, F. Izumi, M. Miyake, "Doping Effect on Crystal Structure of Fast Oxide Ion Conductor LaGaO3-Based Perovskite Compounds", Key Engineering Materials, Vol. 320, pp. 227-230, 2006
Online since
September 2006
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