中国物理B ›› 2018, Vol. 27 ›› Issue (10): 105206-105206.doi: 10.1088/1674-1056/27/10/105206

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

On the dielectric response function and dispersion relation in strongly coupled magnetized dusty plasmas

M Shahmansouri, N Khodabakhshi   

  1. Department of Physics, Faculty of Science, Arak University, Arak, P. O. Box 38156-8-8349, Iran
  • 收稿日期:2017-10-29 修回日期:2018-06-05 出版日期:2018-10-05 发布日期:2018-10-05
  • 通讯作者: M Shahmansouri E-mail:mshmansouri@gmail.com

On the dielectric response function and dispersion relation in strongly coupled magnetized dusty plasmas

M Shahmansouri, N Khodabakhshi   

  1. Department of Physics, Faculty of Science, Arak University, Arak, P. O. Box 38156-8-8349, Iran
  • Received:2017-10-29 Revised:2018-06-05 Online:2018-10-05 Published:2018-10-05
  • Contact: M Shahmansouri E-mail:mshmansouri@gmail.com

摘要:

Using the generalized viscoelastic fluid model, we derive the dielectric response function in a strongly coupled dusty magnetoplasma which reveals two different dust acoustic (DA) wave modes in the hydrodynamic and kinetic limits. The effects of the strong interaction of dust grains and the external magnetic on these DA modes, as well as on the shear wave are examined. It is found that both the real and imaginary parts of DA waves are significantly modified in strongly coupled dusty magnetoplasmas. The implications of our results to space and laboratory dusty plasmas are briefly discussed.

关键词: dusty plasma, strongly coupled plasma, magnetoplasma, dielectric response function

Abstract:

Using the generalized viscoelastic fluid model, we derive the dielectric response function in a strongly coupled dusty magnetoplasma which reveals two different dust acoustic (DA) wave modes in the hydrodynamic and kinetic limits. The effects of the strong interaction of dust grains and the external magnetic on these DA modes, as well as on the shear wave are examined. It is found that both the real and imaginary parts of DA waves are significantly modified in strongly coupled dusty magnetoplasmas. The implications of our results to space and laboratory dusty plasmas are briefly discussed.

Key words: dusty plasma, strongly coupled plasma, magnetoplasma, dielectric response function

中图分类号:  (Dusty or complex plasmas; plasma crystals)

  • 52.27.Lw
52.35.Fp (Electrostatic waves and oscillations (e.g., ion-acoustic waves)) 52.25.Xz (Magnetized plasmas)