Structural investigation of Sr2LiReO6. Evidence for a continuous tetragonal-cubic phase transition |
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| Authors: | René B Macquart |
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| Institution: | School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia |
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| Abstract: | The presence of a continuous and reversible  -I4/m phase transition in a polycrystalline sample of the ordered double perovskite Sr2LiReO6 is described. The transition that occurs near 300 °C is a consequence of in-phase tilting of the BO6 octahedra. The temperature dependence of both the lattice parameters and the spontaneous strains are consistent with a second order phase transition as would be expected for a soft mode transition. |
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| Keywords: | Perovskite Phase transition Rhenate |
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