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|Title:||Structural studies of the phases in Ba2LaIrO6 - new light on an old problem|
|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|
|Appears in Collections:||Journal Articles|
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