Connecting packing efficiency of binary hard sphere systems to their intermediate range structure Auteur(s): Yuan H., Zhang Z., Kob W., Wang Y. (Article) Publié: Physical Review Letters, vol. 127 p.278001 (2022) Texte intégral en Openaccess : Ref HAL: hal-03522429_v1 DOI: 10.1103/PhysRevLett.127.278001 Exporter : BibTex | endNote Résumé: 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. |