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Solitary waves and double layers in a dusty electronegative plasma

Mamun, A.A. and Shukla, Padma and Eliasson, Bengt (2009) Solitary waves and double layers in a dusty electronegative plasma. Physical Review E, 80 (4). ISSN 1539-3755

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Abstract

A dusty electronegative plasma containing Boltzmann electrons, Boltzmann negative ions, cold mobile positive ions, and negatively charged stationary dust has been considered. The basic features of arbitrary amplitude solitary waves (SWs) and double layers (DLs), which have been found to exist in such a dusty electronegative plasma, have been investigated by the pseudopotential method. The small amplitude limit has also been considered in order to study the small amplitude SWs and DLs analytically. It has been shown that under certain conditions, DLs do not exist, which is in good agreement with the experimental observations of Ghim and Hershkowitz [ Y. Ghim (Kim) and N. Hershkowitz Appl. Phys. Lett. 94 151503 (2009)].