title: Structural properties of dense hard sphere packings.
abstract: We numerically study structural properties of mechanically stable packings of hard spheres (HS), in a wide range of packing fractions 0.53 ≤ ϕ ≤ 0.72. Detailed structural information is obtained from the analysis of orientational order parameters, which clearly reveals a disorder-order phase transition at the random close packing (RCP) density, ϕc ≃ 0.64. Above ϕc, the crystalline nuclei form 3D-like clusters, which upon further desification transform into alternating planar-like layers. We also find that particles with icosahedral symmetry survive only in a narrow density range in the vicinity of the RCP transition.
authors.affiliation: Joint Institute for High Temperatures RAS , Izhorskaya str. 13/2, Moscow, 125412, Russia.
authors.forename: Boris A
authors.initials: BA
authors.lastname: Klumov
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Jin
authors.forename: Hernán A
authors.initials: HA
authors.lastname: Makse