Oscillations of Magnetized Dust Grains in Plasma Sheath with Negative Ions

作     者：甘宝霞 陈银华 

作者机构：Key Laboratory of Basic Plasma Physics and Department of Modern Physics University of Science and Technology of China Hefei 230026 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2007年第24卷第7期

页      面：2003-2005页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10375063 and 40336052 

主　　题：PARTICLES 

摘      要：The oscillations of a single magnetized dust grain in electronegative plasma sheath are investigated taking into account the existence of an external magnetic field. The influence of the content of negative ions and the magnetic field intensity on the properties of the dust vibration is analysed. The result shows that the existence of the negative ions in plasma reduces the dust oscillation frequency and drops the equilibrium position of dust, whereas the magnetic field raises the equilibrium position and also reduces the dust oscillation frequency on the condition considered.