Dust-Ion-Acoustic waves in unmagnetized 4-component plasma

A theoretical study is presented for the propagation of Dust Ion Acoustic Waves in an unmagnetized four-component plasma, consisting Maxwellian negative ions, cold mobile positive $\kappa$-distributed electrons and positively charged dust grains. Based on characteristics Sagdeev pseudopotential phase portraits, three types nonlinear waves are observed --- solitons, double layers supersolitons. The conditions existence such highly sensitive to plasma parameters. results obtained this may be wide relevance field space as well ultrasmall semiconductor devices laboratory.