Nonlinear hydromagnetic waves in two-ion-species plasmas

A theoretical study has been carried out to see the modification of low-density electron-ion plasma dynamics in the presence of heavy third-ion species with positive as well as negative charges. It has been shown that the behavior of such a plasma differs from the behavior of a single-ion-species plasma. The stationary state nonlinear equations were solved in different species with respect to charges and masses, and different plasma profiles have been displayed. The weakly nonlinear case has been discussed to demonstrate the low-amplitude solitons