Figure 6
(a) A two-dimensional plot of PSD powder patterns of AgI showing the β/γ–α phase transition (λ = 0.825017 Å, 1 s per pattern). Only 405–440 K temperature data are shown for clarity; note that the α-phase occurs at ∼428 K. Rietveld refinements of (b) the β/γ phase at T = 400 K and (c) the α-phase, T = 450 K. |