Transient microwave conductivity of electrons in helium and argon

The transient microwave conductivity of electrons in partially ionized helium or argon gas is determined from the solution of the appropriate Fokker–Planck equation. The time dependence of the real and imaginary components of the electron conductivity are calculated for several initial velocity dist...

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Veröffentlicht in:The Journal of chemical physics 1988, Vol.88 (1), p.362-370
Hauptverfasser: VIEHLAND, L. A, RANGANATHAN, S, SHIZGAL, B
Format: Artikel
Sprache:eng
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Zusammenfassung:The transient microwave conductivity of electrons in partially ionized helium or argon gas is determined from the solution of the appropriate Fokker–Planck equation. The time dependence of the real and imaginary components of the electron conductivity are calculated for several initial velocity distribution functions. Good agreement is obtained with available experimental measurements for the pressure and frequency dependence of the transient (real) conductivity in helium. For argon, the present results for the transient mobilities are in qualitative agreement with the results obtained with a Monte Carlo simulation. Electron thermalization times in helium and argon are reported for a range of strengths and frequencies of the external microwave electric field.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.454609