Debye length

Measure of electrostatic effect and how far it persists

In plasmas and electrolytes, the Debye length λ D {\displaystyle \lambda _{\text{D}}} (Debye radius or Debye–Hückel screening length), is a measure of a charge carrier's net electrostatic effect in a solution and how far its electrostatic effect persists. With each Debye length the charges are increasingly electrically screened and the electric potential decreases in magnitude by e. A Debye sphere is a sphere whose radius is the Debye length.

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