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Low-frequency electrostatic defect mode in doped pair-ion plasmas

Published online by Cambridge University Press:  22 January 2010

I. KOURAKIS and
N. S. SAINI
I. KOURAKIS
Affiliation:
Centre for Plasma Physics, Department of Physics and Astronomy, Queen's University Belfast, BT7 1NN, UK (i.kourakis@qub.ac.uk)
N. S. SAINI
Affiliation:
Centre for Plasma Physics, Department of Physics and Astronomy, Queen's University Belfast, BT7 1NN, UK (i.kourakis@qub.ac.uk)
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Abstract

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The nonlinear amplitude modulation dynamics of electrostatic oscillations of massive charged defects in a three-component pair plasma is investigated, i.e. doped pair-ion plasmas (anticipating the injection of a massive charged component in the background, e.g. in fullerene experiments). Ion-acoustic oscillations in electron-positron-ion (e-p-i) plasmas are also covered, in the appropriate limit. Linear and nonlinear effects (MI, envelope modes) are discussed. The role of the temperature and density ratio between the pair species is stressed.

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