Charge Variation Effects on Low-Frequency Electrostatic Waves in Dusty Plasmas : Fluids, Plasmas, and Electric Discharges

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概要

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• A general formula for the dispersion characteristics of electrostatic waves in dusty plasmas in the presence of charge fluctuation of dust particles is derived based on the linear response theory. The formula is applicable to arbitrary plasma models and waves. Charging equation due to plasma current on the dust surface is employed to describe the charge fluctuation effect. In particular, temperature fluctuation associated with the space charge fluctuation is taken into account in the charging equation and is found to make an important contribution to the damping or growth of the wave. Stability of low frequency waves where the electron response can be treated as static is discussed in detail. It is shown that the dust charge fluctuation contributes to damping when the dust is negatively charged, but to growth when the dust is positively charged. Results are applied to ion waves with positive dust charge.

• 社団法人日本物理学会の論文
• 2001-01-15

著者

• NISHIKAWA Kyoji

  Faculty of Science,Hiroshima University

• Nishikawa K

  Faculty Of Engineering Kinki University

• TAKAISHI Takeshi

  Faculty of Engineering, Hiroshima Kokusaigakuin University

• YABUHARA Masakazu

  Faculty of Engineering, Kinki University

• Nishikawa Kyoji

  Faculty Of Science

• Takaishi T

  Faculty Of Engineering Hiroshima Kokusaigakuin University

• Takaishi Takeshi

  Faculty Of Engineering Hiroshima Kokusai Gakuin University

• Yabuhara Masakazu

  Faculty Of Engineering Kinki University

• Nishikawa Kyoji

  Faculty of Engineering, Iwate University

• NISHIKAWA Ken-ichi

  Department of Applied Physics, Nagoya University:Institute of Plasma Physics, Nagoya University

• Yaabuhara Masakazu

  Faculty of Engineering,Kinki University

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