Obliquely Propagating Dust-Ion Acoustic Solitary Waves in Magnetized Plasmas with Superthermal Electrons

In this paper, the problem of small amplitude dust-ion acoustic (DIA) soli- tary waves is discussed using the reductive perturbation theory in magnetized plasmas consisting of superthermal electrons, inertial ions, and negatively charged stationary dust grains. Presented investigation shows that the effects of external magnetic eld and superthermal electrons signicantly modify the basic properties of DIA solitary waves, so that an enhancement in the electron superthermality causes a reducion in solition width. Moreover, when the magnetic eld increases, the width of soliton de- creases, and in a consequence, it makes the solitary structures more spiky. In the following, it is found out that the soliton compression and rarefaction are sensitive to the degree of electron superthermality and dust concentration. Also, the value of obliqueness index has bright effect on adjusting the amplitude of the positive and neg- ative solitary waves. It is expected that the results of this study will give more insight into the DIA dynamics in dusty astrophysical and laboratory plasmas.