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Plasma Polarization Around Dust Particle in an External Electric Field
Author(s) -
Sukhinin G.I.,
Fedoseev A.V.,
Khokhlov R.O.,
Suslov S.Yu.
Publication year - 2012
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201100063
Subject(s) - electric field , physics , dipole , plasma , polarization (electrochemistry) , polarization density , particle (ecology) , dusty plasma , monte carlo method , atomic physics , magnetic dipole , condensed matter physics , magnetic field , magnetization , quantum mechanics , chemistry , oceanography , statistics , mathematics , geology
The effect of plasma polarization around a negatively charged dust particle is investigated with the help of Monte Carlo simulation of ion trajectories in the electric field of the dust particle and an external electric field. The induced dipole moment of such a system was estimated in a wide range of dust particle and plasma parameters. It is shown that the dipole moment is very large, and has a non‐monotonous dependence on the external electric field. For a small external electric field, it weakly depends on the charge of the dust particle. The dipole moment reduces with the decrease of ion mean free path (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)