Three-dimensional wake potential in a streaming dusty plasma

Pramana

M K Islam¹  S K Ghosh1¹  A K Banerjee¹  M Salahuddin¹  M Salimullah¹ 

[1]Department of Physics, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh$$

关键词: Dusty plasma;    dust-acoustic mode;    wake potential;    plasma crystal;    electrostatic wave and oscillations.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The oscillatory wake potential for a slowly moving or static test dust particulate in a finite temperature, collisionless and unmagnetized dusty plasma with a continuous flow of ions and dust particles has been studied. The collective resonant interaction of the moving test particle with the low-frequency and low-phase-velocity dust-acoustic mode is the origin of the periodic attractive force between the like polarity particulates along and perpendicular to the streaming ions and dust grains resulting into dust-Coulomb crystal formation. This wake potential can explain the three-dimensional dust-Coulomb crystal formation in the laboratory conditions.

【 授权许可】

Unknown