Thermal effects on the Wigner localization and Friedel oscillations in many-electron nanowires

I. Kylänpää, F. Cavaliere, N. Traverso Ziani, M. Sassetti, E. Räsänen

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    14 Sitaatiot (Scopus)

    Abstrakti

    Thermal effects on the total charge density are studied for a one-dimensional correlated quantum dot by means of the path integral Monte Carlo method. The competition between Friedel and Wigner oscillations at zero temperature is driven by the ratio between the interaction of electronic strength and the kinetic energy of electrons. At the onset of the formation of a Wigner molecule, we show that thermal enhancement of Wigner oscillations occurs in a range of temperatures, which can be observed in the electron density. We further show that low-temperature Friedel oscillations may change to Wigner oscillations upon an increase in the temperature.

    AlkuperäiskieliEnglanti
    Artikkeli115417
    JulkaisuPhysical Review B
    Vuosikerta94
    Numero11
    DOI - pysyväislinkit
    TilaJulkaistu - 13 syysk. 2016
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 2

    !!ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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