Directional motion of dust particles at different gear structures in a plasma

被引：1

作者：

戴超星 ^{[1
]}

宋超 ^{[1
]}

周志向 ^{[1
]}

孙文涛 ^{[1
]}

郭志强 ^{[1
]}

刘富成 ^{[1
]}

贺亚峰 ^{[1
]}

机构：

[1] Hebei Key Laboratory of Optic-electronic Information Materials, College of Physics Science and Technology, Hebei University

来源：

Chinese Physics B | 2020年 / 29卷 / 02期

基金：

中国国家自然科学基金;

关键词：

dusty plasma; ratchet;

D O I：

暂无

中图分类号：

O53 [等离子体物理学];

学科分类号：

070204 ;

摘要：

Directional motion of dust particles in a dusty plasma ratcnet is observed experimentally.The dusty plasma ratcnet consists of two concentric gears with asymmetric sawtooth.It is found that the sawtooth number affects the directional motion of dust particles along the saw channel.With the inerease of the sawtooth number,the particle velocity increases firstly and then decreases,and there is an optimum number of the sawtooth which could induce fast rotation of dust particles.The velocities of dust particles change as they are flowing along the saw channel.We also explore the force acting on the dust particle experimentally.

引用

页码：418 / 421

页数：4

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