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Debye LengthThe Debye length is the scale over which mobile charge carriers screen out electric fields in plasmas and other conductors. Debye length in a plasma In SI units, it is -
where λD is the Debye length, ε0 is the permittivity of free space, k is Boltzmann's constant, Te and Ti are the temperatures of the electrons and ions, respectively, ne is the density of electrons, qe is the charge on an electron, Z is the ionization state of the ions, The ion term is often dropped, giving -
although this is only valid when the electrons are much colder than the ions. Debye length in an Electrolyte In an electrolyte, the Debye length is given by - .
Reference Equation for Debye length copied from Goldston & Rutherford's Introduction to Plasma Physics, Institute of Physics Publishing, Philadelphia: 1997, p. 15)
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