Stripes, Zigzags, and Slow Dynamics in Buckled Hard Spheres
Yair Shokef, Tom C. Lubensky
TL;DR
This paper explores the analogy between buckled colloidal monolayers and the triangular-lattice Ising antiferromagnet, revealing how lattice deformations influence stripe formation and slow, glassy dynamics during inflation.
Contribution
It introduces a free volume-based interaction model and identifies a Martensitic mechanism affecting stripe perfection in buckled spheres.
Findings
Lattice deformations favor zigzag stripe patterns.
Slow inflation leads to jamming and glassy relaxation.
Martensitic mechanism prevents perfect stripe formation.
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.
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