Fully nonlinear ion acoustic solitary waves in a magneto-plasma in the presence of a colder electron component

Abstract

We have studied the effects of a colder electron species on the propagation of fully nonlinear acoustic waves in a magneto-plasma with cold ions. Numerical analysis of the Sagdeev potential shows that in contrast to the unmagnetized case, where both potential hump and potential dip are possible, in a magnetized plasma only potential hump is found to exist.