Negative mobilities of electrons in radio frequency fields

Saša Dujko, Zoran M. Raspopović, Zoran Lj Petrović, Toshiaki Makabe

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In this paper, we perform calculations of mobilities (represented by drift velocities) of electrons in mixtures of F2 and Ar in radio frequency (RF) fields. The conditions were chosen which correspond to those that led to observation of negative absolute mobility in dc fields in decaying plasmas. In RF fields, a similar effect is observed as the mobility corresponding to the flux drift velocity is negative. At the same time, it was found that the mobility corresponding to the bulk drift velocity is mainly positive in respect to the expected value, but that it has a large phase delay. The effect is caused by nonconservative nature of the attachment and in the absence of nonconservative collisions both mobilities are positive and in phase with the field.

Original languageEnglish
Pages (from-to)711-716
Number of pages6
JournalIEEE Transactions on Plasma Science
Volume31
Issue number4 II
DOIs
Publication statusPublished - 2003 Aug

Keywords

  • Drift velocity
  • Electron transport
  • Nonequilibrium
  • Radio frequency (RF) plasmas

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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    Dujko, S., Raspopović, Z. M., Petrović, Z. L., & Makabe, T. (2003). Negative mobilities of electrons in radio frequency fields. IEEE Transactions on Plasma Science, 31(4 II), 711-716. https://doi.org/10.1109/TPS.2003.815468