Details

Autor(en) / Beteiligte

• Chu, J H
• Du, Ji-Bin
• I, Lin

Titel

Coulomb solids and low-frequency fluctuations in RF dusty plasmas

Ist Teil von

• Journal of physics. D, Applied physics, 1994-02, Vol.27 (2), p.296-300

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

1994

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A dusty plasma is an ensemble of dust particles immersed in a plasma consisting of electrons, ions and neutrals. In this study, negatively charged SiO\+v\2\-v\ fine particles were generated and suspended in an SiH\+v\4\-v\/O\+v\2\-v\/Ar discharge. At high pressure (300 mTorr), the random fluctuations of the discharge and particle motions were suppressed. Coulomb solids with particle diameters from a few micrometres to a millimetre were observed. At low pressure, the coupling between particles and the background plasma caused large-amplitude, low-frequency fluctuations of the dusty plasma. (Original abstract-amended)