Figure 8
The difference in the scattering power Δfel between the two elements in a binary compound for 52 B1 phases and 35 B2 phases as a function of the mean scattering power . fA and fB are computed for d = 1.25 Å which is equivalent to s = 0.4 Å−1. This represents the narrowest bands considered in CALM for 20 keV electrons. Black symbols indicate phases where the extrema of the first derivative yield the correct lattice type. Blue symbols represent phases where further interference orders were evident, leading to the correct lattice type. Red symbols illustrate phases where no indication of the correct superlattice existed. |