Pressure-Induced Phase Transition and Octahedral Tilt System Change of Ba₂BiSbO₆

Author(s)

Michael W. Lufaso, University of South Carolina - Columbia
René B. Macquart, University of South Carolina - Columbia
Yongjae Lee, Yonsei University
Thomas Vogt, University of South Carolina - Columbia
Hans-Conrad zur Loye, University of South Carolina - ColumbiaFollow

Document Type

Paper

Subject Area(s)

Chemistry

Abstract

High-resolution X-ray synchrotron powder diffraction studies under high-pressure conditions are reported for the ordered double perovskite Ba₂BiSbO₆. Near 4 GPa, the oxide undergoes a pressure-induced phase transition. The symmetry of the material changes during the phase transition from space group R3¯ to space group I2/m, which is consistent with a change in the octahedral tilting distortion from an a−a−a− type to a0b−b− type using the Glazer notation. A fit of the volume–pressure data using the Birch–Murnagaham equation of stateyielded a bulk modulus of 144(8) GPa for the rhombohedral phase.

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.jssc.2005.12.024

Publication Info

Published in Journal of Solid State Chemistry, Volume 179, Issue 3, 2006, pages 917-922.

Rights

© Journal of Solid State Chemistry 2006, Elsevier.

APA Citation

Lufaso, M., Macquart, R., Lee, Y., Vogt, T., & zur Loye, H.-C. (2006). Pressure-Induced Phase Transition and Octahedral Tilt System Change of Ba₂BiSbO₆. Journal of Solid State Chemistry, 179(3), 917–922. https://doi.org/10.1016/j.jssc.2005.12.024