Crystal Chemistry and Physics of UCd 11 .

In the phase diagram U-Cd, only one compound has been identified so far─UCd 11 (space group Pm 3̅ m ). Since the discovery of this material, the physical properties of UCd 11 have attracted a considerable amount of attention. In particular, its complex magnetic phase diagram─as a result of tuning with magnetic field or pressure─is not well-understood. From a chemical perspective, a range of lattice parameter values have been reported, suggesting a possibility of a considerable homogeneity range, i.e. , UCd 11-x . In this work, we perform a simultaneous study of crystallographic features coupled with measurements of physical properties. This work sheds light on the delicate relationship between the intrinsic crystal chemistry and magnetic properties of UCd 11 .