Please use this identifier to cite or link to this item:
Title: Structural studies of the phases in Ba2LaIrO6 - new light on an old problem
Authors: Zhou, Q
Kennedy, BJ
Avdeev, M
Giachini, L
Kimpton, JA
Keywords: Perovskites
Phase transformations
X-ray diffraction
Iridium oxides
Structural models
Temperature range
Issue Date: Nov-2009
Publisher: Elsevier
Citation: Zhou, Q., Kennedy, B. J., Avdeev, M., Giachini, L., & Kimpton, J. A. (2009). Structural studies of the phases in Ba2LaIrO6 - new light on an old problem. Journal of Solid State Chemistry, 182(11), 3195-3200. doi:10.1016/j.jssc.2009.08.026
Abstract: Accurate and precise structures for the cation-ordered double perovskite Ba2LaIrO6 at a number of temperatures are presented. Careful analysis of the synchrotron X-ray and neutron diffraction profiles of Ba2LaIrO6 suggests that, at room temperature, this is monoclinic in space group I2/m. Heating the sample to 375 K results in a transition to a rhombohedral phase in R3¯ with further heating resulting in the loss of the tilting of the octahedra, the structure being in Fm3¯m. Cooling the sample induces an additional phase transition to a triclinic structure in I1¯. Details of the various structures are presented. © 2009, Elsevier Ltd.
Gov't Doc #: 1344
ISSN: 0022-4596
Appears in Collections:Journal Articles

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.