Abstract
Propagation of dust-ion acoustic wave is studied in a dusty plasma consisting of ions and thermal electrons in the presence of a weak perturbation in the dust density. It is shown that the first-order perturbation of the dust density creates critical changes in the motion equation of dust-ion acoustic wave. Under these conditions, the modified Korteweg-de Vries (mKdV) equation describes the behavior of the dust-ion acoustic wave in the plasma. It is also numerically shown that a part of the solitary wave appears as an oscillatory shock wave after passing through the perturbation area.
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Pakzad, H.R. Propagation of dust-ion acoustic soliton in non-uniform plasma. Indian J Phys 97, 3691–3694 (2023). https://doi.org/10.1007/s12648-023-02696-x
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DOI: https://doi.org/10.1007/s12648-023-02696-x