Research Paper
Year: 2019 | Month: November | Volume: 6 | Issue: 11 | Pages: 153-161
Nonperturbative Technique for Dust-Ion-Acoustic Waves in Dusty Plasma with Nonthermal Electrons
Banajit Sarmah1, Anuradha Devi2, Jnanjyoti Sarma3
1Girijananda Chowdhury Institute of Management and Technology, Guwahati, Assam-781017
2Royal Global University, Guwahati, Assam-781035
3R.G. Baruah College, Guwahati, Assam-781025
Corresponding Author: Banajit Sarmah
ABSTRACT
The existence of dust ion-acoustic waves (DIAWs) and its propagation in multicomponent dusty plasma is studied with the help of fluid model. The dust particles are considered as negatively charged and the electrons are taken as nonthermal. Applying nonperturbative technique Sagdeev Potential equation is derived to study the existence of arbitrary amplitude solitary wave. Solution of small amplitude solitary wave is obtained in the form of equation. Variation of amplitude and width of small amplitude solitary waves with the values of the parameters viz. wave Mach number, population of nonthermal electrons, density ratio, temperature ratio and mass ration, are observed. The values of the parameters are chosen according to the physical consideration of the plasma model.
Key words: Dusty plasma, Dust-ion-acoustic waves, nonthermal electrons, nonperturbative
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