Kinetic phenomena in electron transport in non-equilibrium plasmas sustained by radiofrequency electric and magnetic fields

POSTER

Abstract

Future generation plasma discharge technologies require an accurate knowledge of the transport properties of charged particles in gases under the influence of electric and magnetic fields. In this work, the non-equilibrium transport of electrons in gases under the influence of radio-frequency electric (\textbf{E}) and magnetic (\textbf{B}) fields is studied via a unified time-dependent multi term solution of Boltzmann's equation. We systematically investigate the explicit effects associated with the \textbf{E} and \textbf{B} fields including field to density ratios, field frequency to density ratio, field phases and field orientations. In particular, we highlight the duality of transport coefficients induced by the explicit and implicit effects of non-conservative collisional processes of attachment and ionization. A multitude of kinetic phenomena are observed that are generally unpredictable through the use of steady-state dc transport theory. Phenomena of significant note include the existence of transient negative diffusivity, time-resolved negative differential conductivity and anomalous anisotropic behavior of longitudinal and transverse diffusion coefficient along the \textbf{E}$\times $\textbf{B} direction.

Authors

  • Sasa Dujko

    Institute of Physics, University of Belgrade, PO Box 68, Zemun 11080, Belgrade, Serbia

  • Ron White

    ARC Centre for Antimatter-Matter Studies, School of Engineering and Physical Sciences, James Cook University, Townsville 4810, Australia, ARC Centre for Antimatter-Matter Studies, School of Engineering and Physical Sciences, James Cook University, Townsville 4810, Australai

  • Zoran Lj. Petrovic

    Institute of Physics, University of Belgrade, PO Box 68, Zemun 11080, Belgrade, Serbia, Institute of Physics Belgrade, University of Belgrade, Serbia, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Zemun, Serbia