| Issue |
EPL
Volume 89, Number 2, January 2010
|
|
|---|---|---|
| Article Number | 25001 | |
| Number of page(s) | 6 | |
| Section | Physics of Gases, Plasmas and Electric Discharges | |
| DOI | https://doi.org/10.1209/0295-5075/89/25001 | |
| Published online | 02 February 2010 | |
Dissipative dark solitons in a dc complex plasma
1
Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU
2
Joint Institute for High Temperatures, Russian Academy of Sciences - 125412 Moscow, Russia
Corresponding author: thoma@mpe.mpg.de
Received:
10
September
2009
Accepted:
23
December
2009
The observation of dark solitons in a three-dimensional dc complex plasma is presented. The experiments are performed using neon gas at a pressure of 18 Pa and melamine-formaldehyde particles with a diameter of 3.43 μm. The waves are excited by a short pulse produced by the circular electrical-manipulative electrode built in inside the discharge glass tube. The wave speed is measured to be of the order of 15 mm/s. The propagation time of the observed dark soliton is approximately 10–15 times longer than the damping time.
PACS: 52.27.Lw – Dusty or complex plasmas; plasma crystals / 52.35.Mw – Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.) / 52.35.Sb – Solitons; BGK modes
© EPLA, 2010
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