Phys. Rev. Lett. 84, 4741–4744 (2000)Coarsening of Self-Organized Clusters in Binary Mixtures of ParticlesReceived 2 September 1999; published in the issue dated 15 May 2000 Experiments on patterned particle segregation in binary granular mixtures which are subjected to horizontal shaking have been performed. A novel mechanism for separation is found, where random forcing of one species by the other causes clustering. A pattern is formed which contains a series of stripes aligned orthogonal to the direction of the periodic forcing. The pattern coarsens with time and shows a power law behavior which is consistent with simple models of the geological process of “stone striping.” © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.4741
DOI:
10.1103/PhysRevLett.84.4741
PACS:
45.70.Qj, 47.54.+r, 64.75.+g
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