ANSTO Publications Online: Structural and electronic phase transitions in Sr1-xCexMnO3 perovskites.

Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/2443

Title:	Structural and electronic phase transitions in Sr1-xCexMnO3 perovskites.
Authors:	Kennedy, BJ Saines, PJ Zhou, QD Zhang, ZM Matsuda, M Miyake, M
Keywords:	Perovskite Phase Transformations Jahn-Teller Effect Manganese Oxides X-Ray Diffraction Monocrystals
Issue Date:	1-Oct-2008
Publisher:	Elsevier
Citation:	Kennedy, B. J., Saines, P. J., Zhou, Q. D., Zhang, Z. M., Matsuda, M., & Miyake, M. (2008). Structural and electronic phase transitions in Sr1-xCexMnO3 perovskites. Journal of Solid State Chemistry, 181(10), 2639-2645.
Abstract:	The structures of eight members of the series Sr1-xCexMnO3 with 0.075≤x≤0.4 have been established using synchrotron X-ray powder diffraction. Unusual peak broadening due to domainwall scattering is observed near the composition-induced first-order cubic–tetragonal transition. The temperature dependence of the structures for three examples x = 0.1, 0.2 and 0.35 is described. For the x = 0.1 and 0.35 samples evidence for a first-order loss of the orbital ordering associated with a cooperative Jahn–Teller distortion is presented. The onset of the orbitally disordered state is accompanied by a discontinuous reduction in cell volume. © 2008, Elsevier Ltd.
URI:	http://dx.doi.org/10.1016/j.jssc.2008.06.022 http://apo.ansto.gov.au/dspace/handle/10238/2443
ISSN:	0022-4596
Appears in Collections:	Journal Articles

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