Electron beam-plasma interaction in a dusty plasma with excess   suprathermal electrons
  The existence of large-amplitude electron-acoustic solitary structures is investigated in an unmagnetized and collisionless two-temperature dusty plasma penetrated by an electron beam. A nonlinear pseudopotential technique is used to investigate the occurrence of stationary-profile solitary waves, and their parametric dependence on the electron beam and dust perturbation is discussed. 
Ashkbiz Danehkar, Nareshpal Singh Saini, Manfred A. Hellberg, Ioannis   Kourakis
astro-ph.HE astro-ph.CO physics.plasm-ph