Debye length

Due to the fact that a plasma consists of freely moving charged particles, it has a natural tendency to shield net charges (or DC electric fields). The effective shielding length is the Debye length, and can be derived from a simple two fluid model of the plasma.

${\lambda }_D={\left(\frac{{\epsilon }_0{T}_e}{e^2{n}_0}\right)}^{1/2}$

where T_e is given in energy units.