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Title: Dust-ion-acoustic double layers in multi-ion dusty plasma

A theoretical investigation has been made on nonplanar (cylindrical and spherical) dust-ionacoustic (DIA) double layers (DLs) in a multi-ion dusty plasma system containing inertial positive and negative ions and arbitrarily charged stationary dust. The dust particles have been considered as arbitrarily (either positively or negatively) charged in order to observe the effects of the dust polarity on the DIA DLs. The ion species were considered to be at different temperatures to observe the effects of the temperatures on that waves. The modified Gardner equation, which has been derived by employing the reductive perturbation method, has been used to analyze time-dependent nonplanar and planar DIA DLs. It has been found that the time evolution of DIA DLs is significantly modified not only by the nonplanar geometry, but also by the polarity, temperature, and mass ratio of the constituent particles. It has been also found that the amplitude of cylindrical DIA DL structures is larger than that of 1D planar ones, but smaller than that of the spherical ones.
Authors:
 [1] ;  [2]
  1. Jahangirnagar University, Department of Physics (Bangladesh)
  2. Dhaka University of Engineering and Technology, Department of Physics (Bangladesh)
Publication Date:
OSTI Identifier:
22472205
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 41; Journal Issue: 8; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANIONS; CYLINDRICAL CONFIGURATION; DUSTS; ION ACOUSTIC WAVES; PERTURBATION THEORY; PLASMA; SPHERICAL CONFIGURATION; TEMPERATURE DEPENDENCE; TIME DEPENDENCE