• DOI:10.1063/1.4886125
• Corpus ID: 118453411

Oblique propagation of dust ion-acoustic solitary waves in a magnetized dusty pair-ion plasma

@article{Misra2013ObliquePO,
  title={Oblique propagation of dust ion-acoustic solitary waves in a magnetized dusty pair-ion plasma},
  author={Amar Prasad Misra and Arnab Barman},
  journal={Physics of Plasmas},
  year={2013},
  volume={21},
  pages={073702}
}

• A. P. Misra, A. Barman
• Published 31 October 2013
• Physics
• Physics of Plasmas

We investigate the propagation characteristics of electrostatic waves in a magnetized pair-ion plasma with immobile charged dusts. It is shown that obliquely propagating (OP) low-frequency (in comparison with the negative-ion cyclotron frequency) long-wavelength “slow” and “fast” modes can propagate, respectively, as dust ion-acoustic (DIA) and dust ion-cyclotron (DIC)-like waves. The properties of these modes are studied with the effects of obliqueness of propagation (θ), the static magnetic field, the ratios of the negative to positive ion masses (m), and temperatures (T) as well as the dust to negative-ion number density ratio (δ). Using the standard reductive perturbation technique, we derive a Korteweg-de Vries (KdV) equation which governs the evolution of small-amplitude OP DIA waves. It is found that the KdV equation admits only rarefactive solitons in plasmas with m well below its critical value mc (≫ 1) which typically depends on T and δ. It is shown that the nonlinear coefficient of the KdV equa...