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The Effects of Multi-Species Magnetized Plasma on Arbitrary Amplitude Dust-Ion Acoustic Solitary Structures at Sonic Speed
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DOI:10.1007/s13538-026-02071-1.png)
Abstract
En 中文
In order to examine the presence of arbitrary-amplitude dust-ion acoustic solitons, including supersolitons and double layers at sonic speed, in a collisionless five-component magnetized plasma, the energy integral obtained by applying the Sagdeev pseudo-potential approach. The plasma system includes a nonthermal hot positron species, two different populations of electrons at distinct temperatures, warm adiabatic ions, and negatively charged static dust grains. Positive potential supersolitons (PPSSs) and Positive potential solitary waves (PPSWs) are visible in the graphical analysis of the Sagdeev pseudo-potential, while the system supports negative potential double layers (NPDLs) and negative potential solitary waves (NPSWs) on the negative potential side. Consequently, we have seen that inside a certain domain sigma(sc) > sigma (c)(sc), the amplitude of PPSW grows as sigma(sc) increases, and then the amplitude of PPSW decreases with increasing sigma(sc). We found that the amplitude of PPSW reduces as n(pc), n(sc), beta(p), beta(e), and l(z) grow, but it increases with rising sigma(pc). The effect of parameters on the amplitude of PPSSs and NPSWs has also been considered. We also used phase portrait analysis to examine the characteristics of the various nonlinear wave structures.
Keywords:
Five components magnetized plasma
Sonic speed
Solitary structures
Phase portrait
Supersolitons
Journal
IF:
1.7
Papers:
189
Citations:
2.3K
