• Acta Physica Sinica
  • Vol. 69, Issue 17, 175201-1 (2020)
Jian-Rong Yang1、2、*, Jie-Jian Mao1、2、*, Qi-Cheng Wu1, Ping Liu3, and Li Huang1
Author Affiliations
  • 1School of Physics and Electronics, Shangrao Normal University, Shangrao 334001, China
  • 2Engineering Technology Research Center of Intelligent Electric Vehicle Components of Jiangxi Province, Shangrao 334001, China
  • 3College of Electron and Information Engineering, University of Electronic Science and Technology of China Zhongshan Institute, Zhongshan 528402, China
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    DOI: 10.7498/aps.69.20200468 Cite this Article
    Jian-Rong Yang, Jie-Jian Mao, Qi-Cheng Wu, Ping Liu, Li Huang. Drift wave in strong collisional dusty magnetoplasma[J]. Acta Physica Sinica, 2020, 69(17): 175201-1 Copy Citation Text show less

    Abstract

    The study about the wave mechanism of magnetized dusty plasmas has important value to related experiment, industrial processing and exploring celestial space. The linear and nonlinear fluctuation characteristics of the nonuniform magnetized dust plasma system are researched in this paper. For the homogeneous external magnetic field and the nonuniform environment with density and temperature gradients, a two-dimensional nonlinear dynamic magnetoplasma equation is derived considering the strong impact between dust and neutral particles. The linear dispersion relation is obtained by the linearized method. There are both the damping wave causing by strong collision and the harmonic wave by particle drift. Employing the typical numerical parameters for analysis, the results display that the quantum parameter modifies the system lengths; the real wave frequency is proportion to the drift frequency; the imaginary wave frequency has complex relationship with the collision frequency between dust and neutrals, and the collision of particles causes the dissipation effects to the system. Besides, the analytical solutions of drift shock wave and explosive wave are solved by function change method. The variation about the electrostatic potential with the main physical parameters is discussed in detail. It is shown that the strength of the electrostatic shock wave and the width of the explosive wave increase with increasing the dust density and magnetic field intensity, decrease with increasing the collision frequency, change with the drift velocity. When the space-time phase is small, the electrostatic potential changes quickly; once big enough, the potential tends to be stable value and reaches stable state eventually. Finally, the stability of the system is discussed. It is found that the dusty charge, quantum parameter, drift velocity all appear in the disturbed solution. All these results in the paper show that the strong collision effect, quantum effect, particle drift and magnetic field all play important role to the generation, evolution and stability of drift waves.
    Jian-Rong Yang, Jie-Jian Mao, Qi-Cheng Wu, Ping Liu, Li Huang. Drift wave in strong collisional dusty magnetoplasma[J]. Acta Physica Sinica, 2020, 69(17): 175201-1
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