Debye length
E518984
The Debye length is a characteristic scale in plasmas and electrolytes over which electric potentials are screened due to the collective response of mobile charges.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Debye length canonical | 1 |
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
characteristic length scale
ⓘ
physical quantity ⓘ screening length ⓘ |
| appliesTo |
colloidal suspensions
ⓘ
electrolyte solutions ⓘ ionic solutions ⓘ plasmas ⓘ semiconductors ⓘ |
| assumes |
linear response in Debye–Hückel approximation
ⓘ
thermal equilibrium of charge carriers ⓘ |
| category |
Electrochemistry
ⓘ
Electrostatics ⓘ Plasma physics NERFINISHED ⓘ |
| characterizes | distance over which electric potential decays by factor e ⓘ |
| dependsOn |
charge carrier density
ⓘ
ionic charge ⓘ ionic strength ⓘ permittivity of the medium ⓘ temperature ⓘ |
| describes |
electrostatic screening
ⓘ
range of Coulomb interactions in a plasma ⓘ screening of electric potentials ⓘ |
| field |
astrophysics
ⓘ
condensed matter physics ⓘ electrochemistry ⓘ plasma physics ⓘ statistical mechanics ⓘ |
| hasDimension | length ⓘ |
| isLongWhen |
plasma density is low
ⓘ
temperature is high ⓘ |
| isShortWhen | ionic strength is high ⓘ |
| namedAfter | Peter Debye NERFINISHED ⓘ |
| relatedConcept |
Debye screening
NERFINISHED
ⓘ
Debye–Hückel theory NERFINISHED ⓘ Gouy–Chapman layer NERFINISHED ⓘ Poisson–Boltzmann equation NERFINISHED ⓘ Yukawa potential NERFINISHED ⓘ electrical double layer ⓘ plasma parameter ⓘ screening length ⓘ |
| symbol |
lambda_D
ⓘ
λ_D ⓘ |
| typicalMagnitude |
micrometre scale in laboratory plasmas
ⓘ
nanometre scale in electrolytes ⓘ |
| unit | metre ⓘ |
| usedIn |
analysis of plasma quasi-neutrality
ⓘ
colloid stability analysis ⓘ design of Langmuir probe diagnostics ⓘ modeling of electrolyte screening ⓘ semiconductor depletion region modeling ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.