Structure determination of A2M3+TaO6 and A2M3+NbO6 ordered perovskites: octahedral tilting and pseudosymmetry

Barnes, P.W.; Lufaso, M.W.; Woodward, P.M.

doi:10.1107/S0108768106002448

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 7
Observed neutron diffraction pattern along with calculated and difference patterns from the Rietveld refinement of Sr₂ScNbO₆. Vertical bars shown between the fit data and difference patterns indicate the 2θ position of the observed reflections. The inset emphasizes key superstructure reflections due to in-phase octahedral tilting (marked M), out-of-phase tilting (R) and coupled in-phase and out-of-phase tilting (X).

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 62| Part 3| May 2006| Pages 384-396

doi:10.1107/S0108768106002448

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