Influence of the ion wake-field on the eikonal cross section for the electron–dust collision in dusty plasmas

Abstract

The ion wake-field effects on the elastic electron-dust collisions are investigated in complex dusty plasmas. The eikonal method is employed to investigate the behaviors of the scattering phase shift and scattering cross section due to the variation of the strength of the wake-field. It is shown that the eikonal phase shift decreases with an increase of the Mach number and increases with an increase of the impact parameter. It is also shown that the eikonal phase shift decreases with increasing Debye length. The eikonal cross section for the elastic electron-dust collision is found to be increased due to the influence of the wake-field. In addition, it is found that the wake-field effect on the eikonal cross section is almost independent of the Debye length.

Effects of nonlinear plasma wake field on the dust-lattice wave in complex plasmas

“…Recently, the physical characteristics of dust-lattice waves (Ishihara 1998; Nam & Jung 2012; Ki & Jung 2013) have been investigated in complex dusty plasmas. In addition, the various atomic collision processes (Jung & Hong 2012; Hong & Jung 2014) including the influence of the ion wake field have been investigated in complex dusty plasmas. However, the influence of the nonlinear ion wake field on the dust-lattice wave has not been investigated as yet.…”