Dust-Acoustic Nonlinear Waves in a Nanoparticle Fraction of Ultracold (2K) Multicomponent Dusty Plasma |
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| Authors: | Fedor M Trukhachev Roman E Boltnev Mikhail M Vasiliev Oleg F Petrov |
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| Institution: | 1.Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (R.E.B.); (M.M.V.); (O.F.P.);2.Belarusian-Russian University, 212000 Mogilev, Belarus;3.Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia;4.Chernogolovka Branch of the N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Russia |
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| Abstract: | The nonlinear dust-acoustic instability in the condensed submicron fraction of dust particles in the low-pressure glow discharge at ultra-low temperatures is experimentally and theoretically investigated. The main discharge parameters are estimated on the basisof the dust-acoustic wave analysis. In particular, the temperature and density of ions, as well as the Debye radius, are determined. It is shown that the ion temperature exceeds the temperature of the neutral gas. The drift characteristics of all plasma fractions are estimated. The reasons for the instability excitation are considered. |
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| Keywords: | ultracold dusty plasma nonlinear dusty-acoustic wave Debye radius |
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