Nucleation in Sheared Granular Matter.

Published

Journal Article

We present an experiment on crystallization of packings of macroscopic granular spheres. This system is often considered to be a model for thermally driven atomic or colloidal systems. Cyclically shearing a packing of frictional spheres, we observe a first order phase transition from a disordered to an ordered state. The ordered state consists of crystallites of mixed fcc and hcp symmetry that coexist with the amorphous bulk. The transition, initiated by homogeneous nucleation, overcomes a barrier at 64.5% volume fraction. Nucleation consists predominantly of the dissolving of small nuclei and the growth of nuclei that have reached a critical size of about ten spheres.

Full Text

Cited Authors

  • Rietz, F; Radin, C; Swinney, HL; Schröter, M

Published Date

  • February 2018

Published In

Volume / Issue

  • 120 / 5

Start / End Page

  • 055701 -

PubMed ID

  • 29481202

Pubmed Central ID

  • 29481202

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.120.055701

Language

  • eng