| Issue |
Europhys. Lett.
Volume 57, Number 4, February 2002
|
|
|---|---|---|
| Page(s) | 487 - 491 | |
| Section | Physics of gases, plasmas and electric discharges | |
| DOI | https://doi.org/10.1209/epl/i2002-00485-9 | |
| Published online | 01 September 2002 | |
Non-parabolic plasma sheath potential profile in a dusty plasma
Centro de Ciências Exatas e Tecnológicas
Universidade do Vale do Rio dos Sinos-UNISINOS
Av. Unisinos 950, 93022-000 São Leopoldo, RS, Brazil
Received:
17
April
2001
Accepted:
23
November
2001
The recent proposal of a parabolic profile as a practical and useful approximation for all plasma sheath potentials is checked against the numerical results obtained from a self-consistent description of a dusty plasma near a conductive wall. The hypothesis of the parabolic nature of the electric potential is confirmed for low particle densities but is seemingly not obeyed for higher, yet reasonable, densities.
PACS: 52.27.Lw – Dusty or complex plasmas; plasma crystals / 52.40.Kh – Plasma sheaths
© EDP Sciences, 2002
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