Patterns of broken symmetry in the impurity-perturbed rigid-disk crystal

  title={Patterns of broken symmetry in the impurity-perturbed rigid-disk crystal},
  author={Frank H. Stillinger and Boris D. Lubachevsky},
  journal={Journal of Statistical Physics},
As a new example of spontaneous pattern formation in many-body systems, we examine the collective means by which a close-packed disk crystal reacts to the presence of a single oversized impurity disk. Computer simulation has been used for this purpose; it creates the jammed impurity-containing packings by a kinetic particle-growth algorithm. Hexagonal primitive cells with periodic boundary conditions were employed, and the “natural” number 3n2 of disks (including the impurity) ranged upt to 10… 

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