Dust Lattice Waves of Dusty Plasma Chain with an External Magnetic Field  

作　　者：孙晓霞 王春华 王晓钢 

机构地区：[1]State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Physics and Optoelectronic Technology Dalian University of Technology, Dalian 116024 [2]College of Advanced Science and Technology, Dalian University of Technology, Dalian 116024 [3]School of Sciences, Hefei University of Technology, Hefei 230009 [4]School of Physics, Peking University, Beijing 100871

出　　处：《Chinese Physics Letters》2007年第3期771-773,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China Grant Nos 10575018, 10175013 and 10010760807.

摘　　要：Dust lattice waves of a one-dimensional plasma crystal chain with an external magnetic field are investigated. When the magnetic field is in the vertical direction （θ- 0）, perpendicular to the chain, the vertical transverse mode is not affected, while the horizontal transverse mode is coupled with the longitudinal mode. In the high frequency range, we obtain an ‘upper-hybrid＇ dust lattice mode and in the low frequency range, we obtain a ＇lower-hybrid＇ dust lattice mode. Between the two modes, a ＇gap＇ is formed. When the magnetic field is oriented to the chain （0 = π/2）, the longitudinal mode is not affected while both the horizontal and vertical transverse modes are shifted due to the effect of the magnetic field.Dust lattice waves of a one-dimensional plasma crystal chain with an external magnetic field are investigated. When the magnetic field is in the vertical direction （θ- 0）, perpendicular to the chain, the vertical transverse mode is not affected, while the horizontal transverse mode is coupled with the longitudinal mode. In the high frequency range, we obtain an ‘upper-hybrid＇ dust lattice mode and in the low frequency range, we obtain a ＇lower-hybrid＇ dust lattice mode. Between the two modes, a ＇gap＇ is formed. When the magnetic field is oriented to the chain （0 = π/2）, the longitudinal mode is not affected while both the horizontal and vertical transverse modes are shifted due to the effect of the magnetic field.

关 键 词：MODES 

分 类 号：O44[理学—电磁学]