Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jpcs.2008.12.008
Title: The phase transition in PrGa0.95Mg0.05O3 at elevated temperatures
Authors: Liu, Z.
Shen, Z.X.
Ni, Z.
Liu, L. 
Huang, X.
Lü, Z.
Sui, Y.
Su, W.
Keywords: A. Ceramic
C. Raman spectroscopy
D. Electrical conductivity
D. Phase transitions
D. Thermal expansion
Issue Date: Mar-2009
Citation: Liu, Z., Shen, Z.X., Ni, Z., Liu, L., Huang, X., Lü, Z., Sui, Y., Su, W. (2009-03). The phase transition in PrGa0.95Mg0.05O3 at elevated temperatures. Journal of Physics and Chemistry of Solids 70 (3-4) : 533-535. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jpcs.2008.12.008
Abstract: PrGa0.95Mg0.05O3 was synthesized by a standard solid-state technique, having an orthorhombic structure determined from X-ray diffraction (XRD) data at room temperature. At high temperature, an inflection is found on the Ln σT vs. 1/T curve at about 550 °C. The inflection can also be observed on thermal expansion vs. temperature curve at about 530 °C. Furthermore, the number of Raman modes between 200 and 400 cm-1 decreases and the peak at about 190 cm-1 weakens at about 450 °C. The results indicate a structural transition from orthorhombic to tetrahedral or rhombohedral. © 2008 Elsevier Ltd. All rights reserved.
Source Title: Journal of Physics and Chemistry of Solids
URI: http://scholarbank.nus.edu.sg/handle/10635/98308
ISSN: 00223697
DOI: 10.1016/j.jpcs.2008.12.008
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