Figure 1

(a) XRD results of Ga₃Rh and Rietveld refinement of Ga₃Rh in space group Cmc2₁ (for details see text); (b) HRTEM image of Ga₃Rh from a thin region of a crystallite projected close to [− 110] direction. The image indicates tilting (i.e. waviness) of the (001) lattice planes; (c) 3D EDT data viewed along [100] direction (the [100] 2D slice does not contain enough information due to missing wedge and limited tilt range); (d) EDX spectra of crystallites of Ga₃Rh and Ga₉Rh₂ from thin crystalline regions with negligible absorption effect. The quantitative results using the Rh-L/Ga-K signals agree well to their respectively expected stoichiometry.