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April 18, 2026AIP AdvancesOpen Access

Microscopic wave dynamics and discharge structure hierarchy of highly electronegative plasma at quasi-cold ion approximation

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Authors

RTRui-Ji TangSZShu-Xia ZhaoYTYu Tian

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Overview

Fluid simulation investigates discharge hierarchy in electronegative plasma, suggesting new insights for plasma behavior.

Key Points

  • The research aims to explore the hierarchical structure and wave dynamics of Ar/SF6 plasma at low pressure.
  • Fluid simulation used at quasi-cold ion approximation with room temperature conditions.
  • Investigation of macroscopic, microscopic, and mesoscopic characteristics of the plasma.
  • Dimensional analysis performed to understand ionic recombination behavior.
  • Analysis of double layer formation at plasma interface and wave propagation dynamics.
  • Identified stratification in Ar/SF6 discharge structure affecting electronegative and electropositive regions.
  • Observed parabolic ionic density profiles in the core of the plasma.
  • Demonstrated suppression of ionic vibration due to Landau damping.
  • Revealed transition of wave dynamics from acoustic to Langmuir oscillations.

Cite This Study

Tang et al. (2026) studied this question.

synapsesocial.com/papers/69e3203440886becb653f4c1https://doi.org/10.1063/5.0312608
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