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Figure 9
Lattice parameters, β angles and unit-cell volumes for the monoclinic (m, full symbols) and tetra­gonal (t, open symbols) phases on com­pression at room tem­per­a­ture. The estimated standard deviations are smaller than the size of the symbols. The solid lines are the fits of the third-order Murnaghan equations of state.

IUCrJ
Volume 13| Part 1| January 2026| Pages 116-125
ISSN: 2052-2525
https://doi.org/10.1107/S2052252525010693