🎛 Parameters

Temperature T 1 eV Density n₀ 10¹⁸ m⁻³ Ion charge Z +1

📐 Results

Debye length λ_D

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Plasma param. Λ

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Plasma freq. ω_p

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Thermal vel. v_th

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ℹ️ About

In a plasma, free electrons rearrange to screen a positive charge. The Debye length λ_D = √(ε₀k_BT / n₀e²) sets the screening scale. Beyond λ_D the Yukawa potential φ = (Ze/4πε₀r)·exp(−r/λ_D) falls off exponentially. The plasma parameter Λ = n₀λ_D³ is the number of particles in the Debye sphere — must be ≫ 1 for a "good" plasma.