Time-Dependent Nonplanar Dust-Ion-Acoustic Gardner Double Layers

Ion acoustic waves and double-layers in electronegative expanding plasmas

Electron and ion inertia effects on current-driven collisional dust acoustic, dust ion acoustic, and ion acoustic instabilities

Ion acoustic waves can be excited by electrons drifting relative to the ions in a plasma. This relative drift can be produced, in a collisional plasma, by a static electric field. In the analysis of this instability, which occurs for frequencies well below the ion plasma frequency, the electron inertia term in the momentum equation is typically neglected. A similar assumption has been employed ...

Large amplitude dust ion acoustic solitons: considering dust polarity and nonextensive electrons

The characteristics of arbitrary amplitude dust ion acoustic solitary waves (DIASWs) are studied in unmagnetized dusty plasmas whose constituents are cold uid ions, nonextensive electrons and stationary negative/positive dust particles. The pseudopotential approach has been used to investigate the structure of localized waves. It is found that, solitary waves exist in a definite interval for th...

Sheaths , Double Layers and Dust Levitation

This paper contains an overview of certain sheath phenomena, namely the criterion for sheath formation, some examples of double layers and a description of some recent experiments on the suspension ofdust particles in a sheath. A detailed review is not attempted and results obtained at Oxford are used to illustrate the last two topics.

Dust ion-acoustic shocks in quantum dusty pair-ion plasmas

Abstract The formation of dust ion-acoustic shocks (DIASs) in a four-component quantum plasma whose constituents are electrons, both positive and negative ions and immobile charged dust grains, is studied. The effects of both the dissipation due to kinematic viscosity and the dispersion caused by the charge separation as well as the quantum tunneling due to the Bohm potential are taken into acc...