Effects of Trapped Ions on the Nonlinear Propagation of Modified Electron Acoustic Waves

Effects of trapped ions on the nonlinear propagation of modified electron acoustic waves in an unmagnetized plasma consisting of one cold and one hot components of electrons and one single species of hot ions, have been investigated in this paper. It has been shown that while rarefactive soliton solution exists in such a plasma, no double layer solution has been found to exist. The potential, velocity and width of the soliton have been calculated.