Connecting packing efficiency of binary hard sphere systems to their intermediate range structure
Soft Condensed Matter
2023-02-15 v1 Disordered Systems and Neural Networks
Materials Science
Statistical Mechanics
Abstract
Using computed x-ray tomography we determine the three dimensional (3d) structure of binary hard sphere mixtures as a function of composition and size ratio of the particles, q. Using a recently introduced four-point correlation function we reveal that this 3d structure has on intermediate and large length scales a surprisingly regular order, the symmetry of which depends on q. The related structural correlation length has a minimum at the composition at which the packing fraction is highest. At this composition also the number of different local particle arrangements has a maximum, indicating that efficient packing of particles is associated with a structure that is locally maximally disordered.
Cite
@article{arxiv.2109.00189,
title = {Connecting packing efficiency of binary hard sphere systems to their intermediate range structure},
author = {Houfei Yuan and Zhen Zhang and Walter Kob and Yujie Wang},
journal= {arXiv preprint arXiv:2109.00189},
year = {2023}
}