Solid Solubility in Cu₅Gd_1−xCa_x System: Structure, Stability, and Hydrogenation

Figure 5

(a) P6/mmm lattice parameters a and c as functions of Ca concentration in Cu₅ compounds and (b) corresponding unit cell volume. The lines serve to guide the eyes. Error bars along - and -axes are within the size of the data points; (c) P6/mmm unit cell of Cu₅Gd_0.5Ca_0.5.

(a)

(b)

(c)