Figure 1

Exemplary static light scattering patterns as a function of scattering vector q. (a) Thoroughly deionized sample of number density n = 1.9 µm⁻³ for different times after last gentle shaking as indicated. Curves are shifted for clarity. The scattering pattern is fluid-like. (b) After 3d, this sample forms the typical scattering pattern of a polycrystalline solid with bcc structure which is Miller indexed as indicated. Inset: plot of q ² versus h ² + k ² + l ². The solid line is a fit to the data yielding a number density of n = 1.9 μm⁻³. (c) Thoroughly deionized sample one hour after last homogenization using a rotating tumbler. Again, the scattering pattern can be Miller indexed as indicated to a polycrystalline bcc structure. Inset: plot of q ² versus h ² + k ² + l ². The solid line is a fit to the data yielding a number density of n = 4.8 μm⁻³. We note, that due to multiple scattering, a strongly increased background intensity is present at q > 20 µm⁻¹ in all measurements at large n.