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Journal of Low Temperature Physics

, Volume 109, Issue 1–2, pp 397–405 | Cite as

Evidence for the Edge Magnetoplasmon “Acoustic” Mode in an Electron Layer over Liquid Helium

  • O. I. Kirichek
  • I. B. Berkutov
  • Yu. Z. Kovdrya
  • V. N. Grigor’ev
Article

Abstract

The spectrum of new modes of edge magnetoplasmons (EMP) in an electron layer over liquid helium was studied. The experiments were carried out in the temperature range 0.5–0.7 K at frequencies 0.87–1 MHz and electron density (1.5–3.5) ⋅ 1012 m−2 in a magnetic field up to 0.5 T. Besides conventional edge magnetoplasmons and the EMP mode connected with the displacement of the electron sheet boundary, a new “ acoustic” edge magnetoplasmon mode was observed in an electron layer over liquid helium for the first time. Spectrum of all three types of the magnetoplasmon modes are compared with the existing theories.

Keywords

Magnetic Field Helium Magnetic Material Liquid Helium Electron Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, Inc. 1997

Authors and Affiliations

  • O. I. Kirichek
    • 1
  • I. B. Berkutov
    • 1
  • Yu. Z. Kovdrya
    • 1
  • V. N. Grigor’ev
    • 1
  1. 1.B. Verkin. Institute for Low Temperature Physics and EngineeringAcademy of Sciences of UkraineKharkovUkraine

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