Sheath instability

Sheath instability is an instability in a plasma where ions form sheaths near an electrode, making the plasma unstable. It is a type of Rayleigh–Taylor instability.

Formula

${\omega }^2-(\frac{e}{m})E_0(L_n^{-}1+\frac{n_1^{\text{'}}}{n_0})-i\omega v_0^{\text{'}}=0$