Figure 1
(a) X-ray powder diffraction patterns of the RAl2 series. (b) Variation of the lattice parameter through the RAl2 series. (c) Dependence of the lattice parameter on the rare-earth substitution in the Gd1−xAl2 [R′ = Dy (filled circles), Ho (red, open circles), Er (blue, filled squares) and Lu (green, open squares)] series. This figure is in colour in the electronic version of this paper. |