1. Pusey, P. N. and Van Megen, W. and Bartlett, P. and Ackerson, B. J. and Rarity, J. G. and Underwood, S. M., "Structure of crystals of hard colloidal spheres", Phys. Rev. Lett., 63(25), 2753-2756, (1989). pdf
Confocal image of substitutionally-disordered rhcp lattice
The crystal was formed, after 23 hours, in a suspension with
volume fraction 0.507. The image, 8.2 microns away from a wall, depicts the close-packed {111} plane. The larger spheres
(component A) are shown in green and the smaller spheres (B) in red.