Structural phase transitions in BaCeO3

doi:10.1016/0167-2738(94)90199-6

Solid State Ionics

Volume 74, Issues 3–4, 15 December 1994, Pages 109-117

https://doi.org/10.1016/0167-2738(94)90199-6 Get rights and content

Abstract

High-resolution neutron powder diffraction data have been collected on the perovskite BaCeO₃ in the temperature range 373 K to 1273 K. Structural phase transitions, from space group Pmcm to P4/mbm at 427 K, and P4/mbm to Pm $3$ m at 1112 K, that had been inferred from a recent Raman spectroscopy study were not found to occur. In the temperature range investigated, BaCeO₃ undergoes three structural phase transitions, Pmcn to Incn at 563 K, Incn to $F 3 2/n$ at 673 K and $F 3 2/n$ to Pm $3$ m at 1173 K. Crystal structure refinements are reported in each of the four phases for a single temperature.

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Structural phase transitions in BaCeO3

Abstract

Solid State Ionics

Solid State Ionics

Solid State Commun.

Solid State Ionivs

Acta Cryst. B

J. Mater. Chem.

J. Mater. Chem.

J. Raman Spectrosc.

Structural phase transitions in BaCeO₃