The collective behaviour of weakly ionized RF dusty plasmas is investigated. Negatively charged SiO2 fine particles are generated and suspended in an SiH4/O2/Ar discharge. At high pressure (300 mTorr), the random fluctuations of the discharge and particle motions are suppressed. Coulomb solids with particle diameters from a few micrometres to a millimetre have been observed. At low pressure, the coupling between particles and the background plasma causes large-amplitude low-frequency fluctuations of the dusty plasma.
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Fallan, L., & Opstad, L. (2016). Student Self-Efficacy and Gender-Personality Interactions. International Journal of Higher Education, 5(3). https://doi.org/10.5430/ijhe.v5n3p32
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