Figure 1

X-ray powder diffraction patterns and lattice parameter vs. Y concentration curves for the Y doped (upper) and the (Y, Co) codoped (lower) samples.
Curves have been shifted vertically for the sake of clarity.
X-ray powder diffraction patterns and lattice parameter vs. Y concentration curves for the Y doped (upper) and the (Y, Co) codoped (lower) samples.
Curves have been shifted vertically for the sake of clarity.