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Figure 13
(a) The transition temperature (TC) of Cd6M as a function of the atomic radius rM of M. (b) A schematic illustration of the low-temperature superstructure of Cd6M, showing the orientation of the Cd4 tetrahedron at the cluster centre (M = Ca, Y, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er and Tm) with respect to the Tsai-type cluster. Planes of different colours represent distinct orientations of the Cd4 tetrahedra. Adapted from Nishimoto et al. (2013View full citation).

IUCrJ
Volume 13| Part 5| September 2026| Pages 552-579
ISSN: 2052-2525
https://doi.org/10.1107/S2052252526006263