Oblique Propagation of Low-Frequency Solitary Waves in a Magnetized Polarized Complex Plasma With Adiabatically Trapped Nonthermal Ions

The oblique propagation of low-frequency solitary waves is considered in a polarized magnetized complex plasma with adiabatically trapped nonthermalions. A Cairns–Gurevich distribution is adopted, and the polarization force associated with our plasma model is applied. In addition, the appropriate modified Korteweg–de Vries (mK-dV) equation, in which the Cairns–Gurevich polarization force and external magnetic field are taken into account, is established. Our numerical investigation applied to space dusty plasma reveals that the amplitude and the width of the dust acoustic (DA) solitary structure are significantly modified by the effects of the magnitude of the external static magnetic field $\omega _{c}$ as well as the obliquity $l_{z}$ and polarization force. In particular, we have found that for given values of $l_{z}$ and $\omega _{c}$ , the DA soliton profile becomes more profound due to the presence of Cairns–Gurevich polarization force. For the sake of completeness, we have also analyzed both the effects of Cairns–Gurevich polarization force and the external magnetic field on DA soliton energy. In particular, we have shown that the energy quantities are shifted, for any value of $l_{z}$ , toward large values, in the presence of polarization force.