Stripes, Zigzags, and Slow Dynamics in Buckled Hard Spheres
arXiv:0807.4884 · doi:10.1103/PhysRevLett.102.048303
Abstract
We study the analogy between buckled colloidal monolayers and the triangular-lattice Ising antiferromagnet. We calculate free volume-induced Ising interactions, show how lattice deformations favor zigzag stripes that partially remove the Ising model ground-state degeneracy, and identify the Martensitic mechanism prohibiting perfect stripes. Slowly inflating the spheres yields jamming as well as logarithmically slow relaxation reminiscent of the glassy dynamics observed experimentally.
4 pages, 5 figures