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Figure 6
Normalized lattice parameters versus T, obtained from Rietveld refinement of PND data. For the tetragonal phases, the a lattice parameter is represented by red circles and c by blue triangles. In regions where phase co-existence occurs, only the majority phase present at each temperature is shown.

IUCrJ
Volume 4| Part 3| May 2017| Pages 215-222
ISSN: 2052-2525
https://doi.org/10.1107/S2052252517002226