An Obliquely Propagating Electromagnetic Lower-Hybrid-Drift Instability in Plasmas with Negative Ions  

作　　者：王飞虎 张宙 陈银华 黄凤 

机构地区：[1]CAS Key Laboratory of Basic Plasma Physics,Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China

出　　处：《Plasma Science and Technology》2007年第4期388-393,共6页等离子体科学和技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.40336052,10375063)

摘　　要：In this study, by employing a local fluid theory for warm plasma containing negative ions, an obliquely propagating electromagnetic instability in the lower hybrid frequency range driven by cross-field currents or relative drifts between electrons and ions was investigated. It is found that the growth rate of the lower-hybrid-drift instability （LHDI） can be controlled by appropriate selection of the propagation direction, the wave number and the relative population of the negative ions.In this study, by employing a local fluid theory for warm plasma containing negative ions, an obliquely propagating electromagnetic instability in the lower hybrid frequency range driven by cross-field currents or relative drifts between electrons and ions was investigated. It is found that the growth rate of the lower-hybrid-drift instability （LHDI） can be controlled by appropriate selection of the propagation direction, the wave number and the relative population of the negative ions.

关 键 词：lower-hybrid-drift frequency INSTABILITY negative ions local fluid theory 

分 类 号：O35[理学—流体力学]