Low frequency responses, waves and instabilities in dusty plasmas

Tsytovich, V. N. and Angelis, U. de and Bingham, R. (2002) Low frequency responses, waves and instabilities in dusty plasmas. Physics of Plasmas, 9 (4). pp. 1079-1090. ISSN 1070-664X

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Abstract

The charging collisions of electrons and ions with dust particles and the collisions of all particles with neutral atoms are self-consistently taken into account to study low-frequency modes and instabilities in dusty plasmas. These were previously treated with a multicomponent approach for fixed grain charge or taking into account the dust charge variations but not the effect of the electron/ion–dust collisions on the plasma distributions and response. A new general expression for the dusty plasma response is found and examples of waves and instabilities in dusty plasmas are considered for a broad range of frequencies lower than both the charging frequency and the frequency of plasma particle interactions with dust. Suggestions for future experiments are given.