Diamagnetism and magnetic force: a new laboratory for granular materials and chaotic/deterministic dynamics

被引：12

作者：

Brooks, JS

Cothern, JA

机构：

[1] Florida State Univ, Dept Phys, Tallahassee, FL 32310 USA

[2] Florida State Univ, NHMFL, Tallahassee, FL 32310 USA

来源：

PHYSICA B-CONDENSED MATTER | 2001年 / 294卷

关键词：

magnetic levitation; graphite-epoxy composites; chaotic dynamics; granular materials;

D O I：

10.1016/S0921-4526(00)00751-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report studies on the dynamics of macroscopic particles in a low gravity "magnetic levitation" environment. Particle ensembles are held in a weak confining potential due to diamagnetic forces in a high-field resistive magnet. In such a case, the kinetic energy is not zero, and assemblies of particles undergo ergodic processes to find the lowest configurational ground state. Examples of such processes, as well as consideration of chaotic versus deterministic motion for single-particle orbits, will be presented. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：721 / 728

页数：8

共 18 条

[1] Electrostatically driven granular media: Phase transitions and coarsening [J].