The above image shows electrons (dots) moving through a disordered substrate for increasing drives. For low drives (a-b) the electron trajectories show only one or a few static flow channels. For higher drives (c-d) the channels are more strongly disordered and are changing over time. At the highest drive (f) the electron lattice order is partially restored and a moving electron smectic state forms. C. Reichhardt, C.J. Olson, N. Gronbech-Jensen, and F. Nori, Phys. Rev. Lett. 86, 4354 (2001).
The above image shows two different types of bubble states that are possible for a system with competing interactions. The image on the right shows the first type where there is a condensate of bubbles where the bubbles contain the particles. The bubbles themselves can be seen to form an overall macro-crystal and the particles within the bubbles can form a partially ordered triangular crystal. On the left shows a system where a lattice of voids appear.
The above image shows the evolution of the structure for a system with competing long-repulsion and short range attractions for increasing density.
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Last Modified: 1/1/02