Dissipative dark solitons in a dc complex plasma
Zhdanov, S.; Heidemann, R.; Thoma, M. H.; Sütterlin, R.; Thomas, H. M.; Höfner, H.; Tarantik, K.; Morfill, G. E.; Usachev, A. D.; Petrov, O. F.; Fortov, V. E.; Zhdanov, S.; Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU; Heidemann, R.; Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU; Thoma, M. H.; Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU; Sütterlin, R.; Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU; Thomas, H. M.; Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU; Höfner, H.; Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU; Tarantik, K.; Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU; Morfill, G. E.; Max-Planck-Institut für extraterrestrische Physik - 85741 Garching, Germany, EU; Usachev, A. D.; Joint Institute for High Temperatures, Russian Academy of Sciences - 125412 Moscow, Russia; Petrov, O. F.; Joint Institute for High Temperatures, Russian Academy of Sciences - 125412 Moscow, Russia; Fortov, V. E.; Joint Institute for High Temperatures, Russian Academy of Sciences - 125412 Moscow, Russia
Журнал:
EPL (Europhysics Letters)
Дата:
2010-01-01
Аннотация:
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.
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