This image show the colloidal crystalline structures formed when the colloids interact with a underlying 2D periodic substrate. The different images are for the same substrate periodicity and increasing colloidal density. C. Reichhardt, C.J. Olson, Phys. Rev. Lett. 88, 248301 (2002). Also see an experimental realization of this system by M. Brunner and C. Bechinger Phys. Rev. Lett. 88 248320 (2002).
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Last Modified: 1/1/02