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Plasma excitation dispersion in non-degenerate quantum wire over liquid helium

Author

Listed:
  • Tatiana N. Antsygina

    (B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine)

  • Konstantin A. Chishko

    (B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine)

  • Igor A. Degtyaryov

    (B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine)

  • Igor I. Poltavsky

    (B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine)

  • Sviatoslav S. Sokolov

    (B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine)

  • Nelson Studart

    (Departamento de Física, Universidade Federal de São Carlos
    Centro de Ciências Naturais e Humanas, Universidade Federal do ABC)

Abstract

We calculate the dispersion laws of plasma oscillations for the quasi-one-dimensional multisubband non-degenerate charge system realized in a conducting electron channel over the surface of liquid helium. The influence on plasma dispersion from an external magnetic field is considered. A novel two-subband approach within the random-phase approximation is employed for both intra- and intersubband plasmons. Our results are compared with those obtained previously in quasi-crystalline approach; despite being qualitatively similar, there are quantitative differences, especially at high wave numbers.

Suggested Citation

  • Tatiana N. Antsygina & Konstantin A. Chishko & Igor A. Degtyaryov & Igor I. Poltavsky & Sviatoslav S. Sokolov & Nelson Studart, 2017. "Plasma excitation dispersion in non-degenerate quantum wire over liquid helium," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 90(5), pages 1-13, May.
    • Handle: RePEc:spr:eurphb:v:90:y:2017:i:5:d:10.1140_epjb_e2017-70627-5
    DOI: 10.1140/epjb/e2017-70627-5
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