Electron transport in a multi-resonator system formed by constrictions of a quantum waveguide

Lev M. Baskin, Muaed M. Kabardov, Nataliya M. Sharkova

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

Resonant tunneling is known to emerge in ballistic electron transport in a quantum waveguide with two narrows (constrictions). Here we present results of numerical simulations of electron transport in a system consisting of two identical resonators produced by three narrows in a quantum waveguide. It is shown that, at small electron energies, the resonance peaks of one-resonator system split and the peaks width and their separation depend on the diameter (width) of the narrows. The processes of high energy electron transport, where the role of multichannel scattering with changes of transverse channels (quantum states) becomes substantial, have been investigated. In addition, resonant tunneling in a quantum waveguide with N + 1 delta potential barriers which produce N resonators has been considered. Numerical simulations show formation of band structure and the bands parameters-dependence on the potential barriers, which confirm the possibility of making quasi-one-dimensional crystal in a quantum waveguide with a number of narrows. The results of the study may find potential applications in designing various resonance devices based on quantum waveguides.

Original languageEnglish
Title of host publicationProceedings of the International Conference Days on Diffraction, DD 2016
EditorsA.Ya. Kazakov, A.P. Kiselev, O.V. Motygin, A.S. Kirpichnikova, L.I. Goray, P.V. Kapitanova
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages52-55
Number of pages4
ISBN (Electronic)9781509058006
DOIs
StatePublished - 28 Nov 2016
Event2016 International Conference Days on Diffraction, DD 2016 - St. Petersburg, Russian Federation
Duration: 27 Jun 20161 Jul 2016

Publication series

NameProceedings of the International Conference Days on Diffraction, DD 2016

Conference

Conference2016 International Conference Days on Diffraction, DD 2016
CountryRussian Federation
CitySt. Petersburg
Period27/06/161/07/16

Scopus subject areas

  • Radiation
  • Instrumentation

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