Diffusion tensor in electron transport in gases in a radio-frequency field

Kenji Maeda, Toshiaki Makabe, Nobuhiko Nakano, Svetlan Bzenic-acute, Zoran Lj Petrovic-acute

研究成果: Article査読

64 被引用数 (Scopus)

抄録

Electron transport theory in gases in a radio-frequency field is developed in the hydrodynamic regime from the density gradient expansion method of the Boltzmann equation. Swarm parameters for the radio-frequency (rf) field with periodic time modulation are derived as functions of both reduced effective field strength and reduced angular frequency from the time dependent velocity distribution function. The rf electron transport in phase space is analyzed from the series of governing equations by a direct numerical procedure (DNP). Electron velocity distribution function and corresponding swarm parameters obtained from DNP agree with those of the Monte Carlo simulation in the frequency range 10–200 MHz at 10 Td for Reid's inelastic ramp model gas. The temporal modulation of the ensemble average of energy and the diffusion tensor are discussed. The appearance of the anomalous time behavior of the longitudinal diffusion coefficient is discussed in particular detail, and we provide an explanation of the observed effect.

本文言語English
ページ(範囲)5901-5908
ページ数8
ジャーナルPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
55
5
DOI
出版ステータスPublished - 1997 1月 1

ASJC Scopus subject areas

  • 統計物理学および非線形物理学
  • 数理物理学
  • 凝縮系物理学
  • 物理学および天文学(全般)

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