Sheath structure in plasma with two species of positive ions and secondary electrons

Zhao Xiao-Yun^{1, 2, 3, 4}, Xiang Nong^{1, 4, †,}, Ou Jing^{1, 4}, Li De-Hui^{1, 4}, Lin Bin-Bin^{1, 4}

Variations of critical ion velocity u₁₀ at the sheath edge with (a) SEE coefficient γ for different plasma (Ar–He, Ar, and Ar–Xe) and (b) ion mass ratio for γ = γ_c while N₂₀ = 0.1.