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

Tatiana N. Antsygina, Konstantin A. Chishko, Igor A. Degtyaryov, Igor I. Poltavsky, Sviatoslav S. Sokolov and Nelson Studart ()
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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

The European Physical Journal B: Condensed Matter and Complex Systems, 2017, vol. 90, issue 5, 1-13

Abstract: 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.

Keywords: Mesoscopic; and; Nanoscale; Systems (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1140/epjb/e2017-70627-5

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