Physics

Clustering transitions in vibrofluidized magnetized granular materials

Document Type

Article

Abstract

We study the effects of long-range interactions on the phases observed in cohesive granular materials. At high vibration amplitudes, a gas of magnetized particles is observed with velocity distributions similar to nonmagnetized particles. Below a transition temperature compact clusters are observed to form and coexist with single particles. The cluster growth rate is consistent with a classical nucleation process. However, the temperature of the particles in the clusters is significantly lower than the surrounding gas, indicating a breakdown of equipartition. If the system is quenched to low temperatures, a metastable network of connected chains self-assemble due to the anisotropic nature of magnetic interactions between particles. © 2003 The American Physical Society.

Publication Title

Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

Publication Date

1-2003

Volume

67

Issue

2

First Page

4

ISSN

1063-651X

DOI

10.1103/PhysRevE.67.021302

Cross Post Location

Student Publications

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