In an unbounded, collisionless and unmagnetized plasma consisting of positive and negative ions together with non-thermal electrons, first and second order amplitudes and widths of the ion-acoustic solitary waves are discussed here properly along with the effect of the concentration of negative ion and temperature of both positive and negative ions.
International Letters of Chemistry, Physics and Astronomy (Volume 54)
S. Chattopadhyay, "Effect of Concentration of Negative Ion and Temperature of both Ions on Amplitude and Width for Non-Thermal Plasma", International Letters of Chemistry, Physics and Astronomy, Vol. 54, pp. 166-183, 2015