Neutron diffraction study of phase transitions in perovskite-type strontium molybdate SrMoO3

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Date
2010-01
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Elsevier
Abstract
The structure of a polycrystalline sample of SrMoO3 has been investigated using powder neutron diffraction from 5 to 300 K, to reveal two structural phase transitions, the first from the cubic structure with a=3.97629(3) Å to a tetragonal structure in I4/mcm near 266 K and the second to an orthorhombic Imma phase below 125 K. The average Mo–O distance is essentially independent of temperature. The temperature dependence of the octahedral tilting appears typical of a tricritical phase transition. © 2009, Elsevier Ltd.
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Keywords
Perovskite, Phase transformations, Neutron diffraction, Electrical properties, Strontium, Molybdates
Citation
Macquart, R. B., Kennedy, B. J., & Avdeev, M. (2010). Neutron diffraction study of phase transitions in perovskite-type strontium molybdate SrMoO3. Journal of Solid State Chemistry, 183(1), 250-255. doi:10.1016/j.jssc.2009.11.005
URI
http://dx.doi.org/10.1016/j.jssc.2009.11.005
 http://apo.ansto.gov.au/dspace/handle/10238/2999
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